CIENTISTAS DESCOBREM ARANHA SEM OLHOS EM CAVERNA NA ÁSIA
Autor: Professor Efrem | Publicado: 2012-09-10T12:27:00-03:00

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Cegueira é adaptação a ambiente totalmente escuro,
segundo pesquisa.
'Sinopoda scurion' foi batizada em homenagem a empresa de lanternas.



Cientistas descobriram uma espécie de aranha sem olhos em
uma caverna do Laos, na Ásia. Chamado de Sinopoda scurion,
o animal é o primeiro do tipo "caçador" totalmente cego identificado
até agora, segundo Peter Jäger, chefe do setor de aracnologia do Instituto de
Pesquisa Senckenberg, localizado em Frankfurt, na Alemanha.

O aracnídeo foi descrito em estudo na publicação científica
"Zootaxa". A falta de olhos é uma adaptação da aranha ao escuro total
da caverna, assim como a ausência de pigmento, segundo a pesquisa.

A nova espécie de aranha mede seis centímetros, com as
pernas abertas. Animais como peixes, escorpiões e caranguejos encontrados em
cavernas no Laos também apresentam adaptação similar e são cegos, segundo
Jäger.

29/08/2012
06h30 - Atualizado em 29/08/2012 06h30 &nbsp;-
G1



1. A partir da leitura, responda o que se pede:

a) Qual seria a explicação para esse fato, de acordo com a
teoria de Lamarck?

b) Qual seria a explicação para esse fato, de acordo com a
teoria de Darwin?