So you like big butts and you cannot lie? UA researchers have a new theory about sexual dimorphism. Daniel Stolte from the UA has some details: Take a look around in the animal world and you will find ...

A five-spotted hawk moth squirming its way out of its hard cocoon casing has gone viral on Reddit. The video of the fully-formed moth escaping from its cocoon has amassed over 49,000 upvotes. Posted ...

In most animal species, males and females show obvious differences in body size. But how can this be, given that both sexes share the same genes governing their growth? Entomologists studied this ...

If you walk through a field of fireweed, you might see spittle bugs, aphids and — if you are lucky — a hawk moth. They hover at flowers on their rather narrow wings, extending their “tongues” to ...

Hawk moths are known for being some of the largest night fliers in the insect world. With wingspans of more than four inches, many species are big enough to comfortably fill the palm of your hand.