cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.3535/a5e-75q-6mz
title: Agonopterix heracliana Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/f27-691-j9e
title: Ochlodes Scudder, 1872

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/0ch-x4t-8k1
title: Acrobasis repandana Fabricius, 1798

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/ley-axe-jrq
title: Gluphisia crenata (Esper, 1785)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/bdf-q4j-amr
title: Leucoma salicis (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/pmr-7x7-fna
title: Pyrgus centaureae (Rambur, 1839)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/ltr-4g5-kfq
title: Nymphalis antiopa (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/flz-s9f-m8a
title: Nymphalis antiopa (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/mtd-y0p-xp7
title: Anarta (Anarta) myrtilli Linnaeus, 1761

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/8xn-wy4-8ay
title: Opigena polygona [Denis & Schiffermüller], 1775

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/w97-rfk-5d5
title: Charanyca (Charanyca) trigrammica (Hufnagel, 1766)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/tvd-2zq-n54
title: Udea lutealis Hübner, 1809

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/xlt-7a6-gsf
title: Agonopterix heracliana Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/zms-ept-6b0
title: Agonopterix heracliana Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/aw8-qwv-hhh
title: Trachea atriplicis (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/6eq-j7n-5fp
title: Acrobasis repandana Fabricius, 1798

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/w1n-mac-hfc
title: Acrobasis repandana Fabricius, 1798

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/c0r-m56-tet
title: Hypena proboscidalis (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/867-0jb-5qf
title: Hesperia comma Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/x0z-vyn-59y
title: Agonopterix heracliana Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/3l8-xq3-029
title: Abrostola tripartita (Hufnagel, 1766)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/vr4-l83-9st
title: Xestia (Xestia) baja [Denis & Schiffermüller], 1775

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/d1d-y6a-xs3
title: Erebia medusa [Denis & Schiffermüller], 1775

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/ejq-ha6-cc8
title: Apamea (Apamea) remissa (Hübner)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/rzq-3ke-2jw
title: Colocasia coryli (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/chm-3my-364
title: Hesperia comma Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/k9v-kmy-jw5
title: Opigena polygona [Denis & Schiffermüller], 1775

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/rk7-nbj-117
title: Aricia artaxerxes (Fabricius, 1793)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/1n9-877-1wr
title: Arctia plantaginis (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/j08-yl8-tbm
title: Mniotype satura [Denis & Schiffermüller], 1775

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/z1w-89v-yam
title: Coenonympha pamphilus (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/rn3-z7z-x8r
title: Colocasia coryli (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/se7-vhp-58f
title: Udea Guenée, 1845

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/7h3-rne-faj
title: Erebia medusa [Denis & Schiffermüller], 1775

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/ljv-z0m-yx4
title: Oligia latruncula ([Denis & Schiffermüller], 1775)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/n58-006-pf5
title: Apamea (Apamea) anceps ([Denis & Schiffermüller], 1775)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/7ew-cjv-pxn
title: Oligia latruncula ([Denis & Schiffermüller], 1775)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/a3f-q09-dzs
title: Miltochrista miniata (Forster, 1771)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/tpf-z35-sns
title: Animalia

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/78s-may-ecs
title: Agriades Hübner, 1819

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/e0x-jky-v7k
title: Hydraecia nordstroemi Horke, 1952

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.17026/ar/1aedpt
title: PAN-00178773 - eye brooch B

description: &lt;p&gt;This find is registered at Portable Antiquities of the Netherlands with number PAN-00178773&lt;/p&gt;
description: Modified: 2025-08-21T17:52:41+02:00
DOI: 10.3535/05c-9me-sbh
title: Cerastis leucographa [Denis & Schiffermüller], 1775

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/1yq-xlg-pp4
title: Eurois occulta Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/1vp-3gm-va3
title: Herminia tarsicrinalis (Knoch, 1782)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/j9x-39d-bs7
title: Ochlodes Scudder, 1872

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/djt-zwe-551
title: Hydraecia nordstroemi Horke, 1952

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/9lq-qq2-pb9
title: Miltochrista miniata (Forster, 1771)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/ep7-k05-cw1
title: Miltochrista miniata (Forster, 1771)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/prf-253-31y
title: Ochlodes Scudder, 1872

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/kyf-s4r-d5n
title: Mniotype satura [Denis & Schiffermüller], 1775

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/brn-ckn-x1t
title: Mniotype satura [Denis & Schiffermüller], 1775

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/qvl-xc3-1tc
title: Xestia (Xestia) baja [Denis & Schiffermüller], 1775

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/d4t-8rw-txc
title: Eurois occulta Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/t5k-pjc-njn
title: Abrostola tripartita (Hufnagel, 1766)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/gvs-p37-75m
title: Herminia tarsicrinalis (Knoch, 1782)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/h0z-n5y-ss0
title: Oligia latruncula ([Denis & Schiffermüller], 1775)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/c91-znm-k48
title: Colocasia coryli (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/d35-tn4-8e8
title: Abrostola triplasia (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/6np-yej-0a4
title: Lycaena virgaureae (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/fgt-vx3-jz5
title: Leucoma salicis (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/l87-1w0-673
title: Ochlodes Scudder, 1872

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/rvg-sy1-9wd
title: Aglais urticae (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/fmz-48c-db8
title: Oligia latruncula ([Denis & Schiffermüller], 1775)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/v0p-b40-d1l
title: Leucoma salicis (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/54f-spq-n7c
title: Trichosea ludifica (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/r82-flc-ddp
title: Ochlodes Scudder, 1872

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/nbr-va9-6w3
title: Melitaea cinxia Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/zp0-vfw-rxh
title: Melitaea cinxia Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/698-h6e-emz
title: Hydraecia nordstroemi Horke, 1952

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/ex9-hx8-t78
title: Pyrausta cingulata Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/2vb-wag-pta
title: Lygephila (Lygephila) viciae Hübner, 1822

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/7vv-49d-h60
title: Xestia (Xestia) baja [Denis & Schiffermüller], 1775

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/kbt-dty-qyp
title: Melitaea cinxia Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/va8-4bw-n2x
title: Colias hecla Lefèbvre, 1836

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/9e9-en3-3w6
title: Udea Guenée, 1845

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/spv-1qt-r7w
title: Colocasia coryli (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/7xa-4m7-p14
title: Cerastis leucographa [Denis & Schiffermüller], 1775

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/9aq-462-6e4
title: Agriades Hübner, 1819

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/6dw-1gz-93g
title: Xestia (Xestia) baja [Denis & Schiffermüller], 1775

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/158-7gl-qsz
title: Xestia (Xestia) baja [Denis & Schiffermüller], 1775

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/b9a-gz7-hwb
title: Agriades Hübner, 1819

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/3ml-69h-hf7
title: Lygephila (Lygephila) pastinum Treitschke, 1826

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/hy1-3dr-4ny
title: Exaeretia Stainton, 1849

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/hre-597-bz9
title: Udea Guenée, 1845

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/rq7-ctj-g2s
title: Melitaea cinxia Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/t7a-h8t-1q2
title: Mniotype satura [Denis & Schiffermüller], 1775

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/0a3-y04-npk
title: Coranarta cordigera Thunberg, 1788

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/k7v-dyt-dyf
title: Eurois occulta Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/v6n-3p3-a5w
title: Coranarta cordigera Thunberg, 1788

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/f8j-xwa-yjm
title: Pyrausta cingulata Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/0st-w7f-20f
title: Crambus alienellus Zincken, 1817

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/859-k2m-4bj
title: Cerastis leucographa [Denis & Schiffermüller], 1775

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/b7w-mb5-rs3
title: Xanthia (Xanthia) togata Esper

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/chw-4hx-nwr
title: Acrobasis repandana Fabricius, 1798

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/s3s-pq6-9pr
title: Abrostola tripartita (Hufnagel, 1766)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/2lr-28m-cp7
title: Aporia crataegi (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/6vb-3s7-fll
title: Aricia artaxerxes (Fabricius, 1793)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/c2t-0qx-rek
title: Aricia artaxerxes (Fabricius, 1793)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/g01-wkd-22w
title: Acrobasis repandana Fabricius, 1798

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/pnl-b28-mq6
title: Boloria Moore, 1900

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/nb1-ybe-hrx
title: Melitaea cinxia Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/8y9-emp-94j
title: Udea Guenée, 1845

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/l3z-yb7-x01
title: Xestia (Megasema) c-nigrum (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/2cf-040-117
title: Eurois occulta Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/fvb-yp2-x4e
title: Aporia crataegi (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/mvf-2st-be1
title: Abrostola tripartita (Hufnagel, 1766)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/myw-433-6l3
title: Abrostola tripartita (Hufnagel, 1766)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/f70-j99-cvh
title: Abrostola triplasia (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/pnv-wez-f88
title: Aporia crataegi (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/cqs-dpb-snv
title: Abrostola triplasia (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/j58-0k5-emd
title: Lygephila (Lygephila) pastinum Treitschke, 1826

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/px3-gnd-46e
title: Animalia

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/w4j-cn5-3sm
title: Cerastis leucographa [Denis & Schiffermüller], 1775

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/8wx-lfz-tr5
title: Melitaea cinxia Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/a4z-301-2e3
title: Xanthia (Xanthia) togata Esper

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/kc8-0lm-qld
title: Xestia (Xestia) baja [Denis & Schiffermüller], 1775

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/l9q-yky-3wq
title: Ochlodes Scudder, 1872

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/s2s-tvx-0eg
title: Erebidae

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/sfb-7fl-fat
title: Epirrhoe pupillata (Thunberg, 1788)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/4sp-gxv-waz
title: Abrostola tripartita (Hufnagel, 1766)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/kgm-t14-036
title: Hydraecia micacea Esper, 1789

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/nmv-0dh-6hn
title: Caradrina (Caradrina) morpheus (Hufnagel, 1766)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/vkr-zdp-m01
title: Agrochola (Leptologia) Prout, 1901

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/kx9-0nt-qgj
title: Cyclophora albipunctata (Hufnagel, 1767)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/zqk-6zs-3dj
title: Gynaephora (Dicallomera) fascelina (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/n8l-jy6-fmh
title: Colias hecla Lefèbvre, 1836

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/wa4-0yn-jtk
title: Colias tyche (Böber, 1812)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/e6y-1zc-tx8
title: Gynaephora (Dicallomera) fascelina (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/y59-t6m-qkl
title: Hipparchia semele Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.
DOI: 10.3535/8ga-rys-cdj
title: Xanthia (Xanthia) togata Esper

description: Digital Specimen for the physical specimen hosted at Finnish Museum of Natural History.