[DOC] [TLE] Sea urchin - Wikipedia [PAR] Sea urchins or urchins archaically called sea hedgehogs, are small, spiny, 
globular animals ... Sea otters, starfish, wolf eels, triggerfish, and other predators 
hunt and feed on sea urchins. Their roe is ..... lividus is often eaten raw, or with 
lemon, and known as ricci on Italian menus where it is sometimes used in pasta 
sauces. [DOC] [TLE] Starfish - Urchins - Biology4Kids [PAR] Starfish, urchins, and sea cucumbers are all grouped as echinoderms. ... The 
creatures in this group all have some type of spiny structure on the ... Sometimes 
they come across a bivalve (mussel or clam). ... The other big idea that is not so 
easy to see is that starfish have something called a water based vascular system. [DOC] [TLE] Echinoderms (starfish, brittle star, sea urchin, feather star, sea ... [PAR] Dec 14, 2015 ... Sea stars or starfish (Echinoderms like Valvatida, Comb Sea Star, ... There are 5 
related classes in the phylum Echinodermata (the Latin name means "spiny-
skinned"). ... Echinoderms have tentacle-like structures called tube feet with .... 
However some sea urchins such as Diadema sometimes form large... [DOC] [TLE] Sea Urchins [PAR] In fact, the sea urchin gets its name from an Old English word for the spiny 
hedgehog, ... the spines, sea urchins also have a hard outer body like that of its 
relatives. Their outer skeleton--called a test--is made up of ten fused plates that 
encircle ... Sea urchins mainly congregate in colder, offshore waters, but 
sometimes travel... [DOC] [TLE] Sea Cucumbers, Sea Cucumber Pictures, Sea Cucumber Facts ... [PAR] Please add a "relative" entry to your dictionary. Sea cucumbers are echinoderms
like starfish and sea urchins. There are some 1,250 known species, and many
... [DOC] [TLE] SEA ANEMONE, SEA URCHINS AND STARFISH | Facts and Details [PAR] Sometimes a piece of sea anemone can grow into a new animal. ... of a sea 
anemones are coated with stinging cells called nematocysts. ... Echinoderms (
meaning "spiny skinned") are a species of animals that includes sea urchins, 
starfish... [DOC] [TLE] Starfish, sea urchins and other echinoderms  Te Ara Encyclopedia ... [PAR] Jun 12, 2006 ... Starfish, sea lilies, feather stars, sea urchins and other colourfully named 
creatures belong to the group known as echinoderms (meaning spiny skinned). 
... Starfish. You can sometimes find starfish (or sea stars) in rock pools. [DOC] [TLE] Sea Stars & Relatives - City of Edmonds [PAR] Sea stars and their relatives (sea cucumbers, sand dollars and sea urchins) 
belong to a large group of animals called echinoderms (meaning spiny-skinned). 
... Found on rocky beaches and pilings, sometimes on sand. ... Fun Facts: Scale 
worms often are found on the undersides of this sea star, living in a commensal... [DOC] [TLE] Sea Urchins - info and games - Sheppard Software [PAR] Sea urchins are spiny sea creatures of the class Echinoidea found in oceans all 
over the world. ... which also includes starfish, sea cucumbers, Brittle-stars, and 
crinoids. Like other echinoderms they have five-fold symmetry (called 
pentamerism) ... Sometimes the most visible sign of life is the spines, which are 
attached at... [DOC] [TLE] Echinoderms - MBGnet [PAR] Many, but not all, echinoderms have spiny skin. ... Sea Star Sea stars (group 
name Stelleroidea) are sometimes called starfish, ... Sea Urchins & Sand Dollars [DOC] [TLE] Southern Star - The secret lives of starfish [PAR] Aug 17, 2016 ... Starfish and their relatives the brittle stars, sea-urchins and ... some of them stick 
through the skin while in the aptly-named spiny starfish these form ... first 
described the animal in detail, the Aristotle's lantern can sometimes be... [DOC] [TLE] 240: Have a Heart... Urchin - Star Thrower Educational Multimedia ... [PAR] Sea urchins are relatives of the starfish (oops, sea stars... must be PC about this) 
... stars, they all belong to the phylum

Question: This spiny relative of the starfish is sometimes referred to as a sea hedgehog
Answer: Sea Urchin