Fish sometimes open their mouths, but is it yawning?
How did the waggle dance evolve?
Why don't fish have eyelids? How can they sleep if they can never get any shut-eye?
Why is it that Aussie snakes have such a bad reputation?
Why is it that humans have three different blood groups: A, B and O. Do animals have the same blood groupings?
How do smells travel underwater and how can a shark smell a drop of blood in an entire ocean?
I’d like to know if there are any life forms: plant, animal, fungus, whatever that are effectively immortal?
How is it possible for a Bornean flat-headed frog to have no lungs and breathe through its skin?