If fish feel pain and pleasure, what should we do?
Psittacosaurus is the latest dinosaur to be reconstructed in its original hues
The cow’s quirky digestive system powers the animal kingdom
Patricia Wright has a passion for these endangered primates, and spent the last three decades studying them
Monk parakeets, like humans, use complex thinking to understand where they stand in their group’s social order
Peter Hess • September 28, 2015
Toxin researcher mines snake DNA for potential medicines