What are the odds that elephants will become extinct in the next 30 years? [more inside]
posted by Joe Beese on Sep 11, 2009 - 5 answers

Where can I find data (online) on the average size of common mammalian species' testes? [more inside]
posted by itchi23 on Apr 7, 2007 - 5 answers

I'm interested in cells. As many different types as can be identified, and the more specific the better. Preferably mammalian, certainly vertebrate (otherwise the the list would be too big!). [more inside]
posted by kisch mokusch on Mar 8, 2007 - 16 answers