Re: [asa] First Animal?

From: David Campbell <>
Date: Tue Oct 06 2009 - 17:41:12 EDT

In terms of the fossil record, we do not know exactly what the first
animal was like; some of the oldest evidence of animals comes from
chemical traces of sponges rather than body fossils.

However, on both molecular and morphological evidence, we see that the
first animal was a sponge. The choanoflagellates are the closest
known non-animals; they can be colonial but do not have true
multicellularity nor a blastula larva.

Dr. David Campbell
425 Scientific Collections
University of Alabama
"I think of my happy condition, surrounded by acres of clams"
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Received on Tue Oct 6 17:41:51 2009

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