Is there scientific evidence that animals have an innate/instinctual urge to reproduce? Is there scientific evidence that it is the same in humans? [more inside]
posted on Jul 11, 2007 - 45 answers

What experiments have been carried out where animals perform better than us at particular cognitive tasks? [more inside]
posted on May 9, 2006 - 13 answers

Are there any animals that have evolved a use for radioactivity? If so, what ways is it used? If not, why has this not happened? [more inside]
posted on Nov 23, 2005 - 32 answers

I'll be teaching a small group of 11-year-old students (bright, literate) a class on life sciences, especially animal sciences. I need books or other materials they might connect with. [more inside]
posted on Apr 26, 2005 - 13 answers

Why do warm climates seem to have more poisonous animals than cold ones?
posted on Jul 3, 2004 - 8 answers

Why aren't animals solar-powered? [more inside]
posted on Mar 12, 2004 - 31 answers

Can fish interbreed like dogs? My SO and I have been talking about dogs lately so the mixed-breed thing has been a regular topic of conversation. Last night we were at a Thai restaurant with a large fish tank and some gigantic fish. Too big for the tank, in my opinion. And that got me to wondering....can different kinds of fish, genetically speaking, be bred with each other? Even if they wouldn't do it on their own (mating rituals, etc.), could they do it with a scientists help?
posted on Feb 24, 2004 - 8 answers