Beyond factors like genetics and environment, animal personality is also shaped by something more fundamental: the species ...

The animals of our planet walk on two legs, or four legs, or six, or even 750 for that matter. So why don’t any animals have three? The rest of this article is behind a paywall. Please sign in or ...

In a Netherlands zoo, an elderly chimpanzee named Mama is weak and dying. Elderly biology professor Jan van Hooff, who has known the primate for four decades, enters Mama’s enclosure—something usually ...

While speediness is a priority for any animal trying to escape a predator or avoid a fall, a new study suggests that even the fastest reflexes among all animals are remarkably slow. While speediness ...