A swollen wing vein helps butterflies detect low-frequency sounds.

Although highly controversial now, keeping orcas in captivity helped transform popular and scientific conceptions of the marine mammal from an unfeeling killer to a complex, intelligent animal.

A group of around 300 whales produced 184 distinct songs over just a few years, according to a new study.

Social insects kill infected individuals for the benefit of the colony—and now a study has shown how they know who’s sick.

Robert McNeill Alexander, best known for his work on animal locomotion, has passed away aged 81.

Watch footage from the public dissection of Marius, the young giraffe at the Copenhagen Zoo who was ultimately fed to predators at the facility. (CAUTION: GRAPHIC IMAGES)

Is the public dissection of zoo animals a boon to research and education, a PR nightmare, or both?

Protein extracted from ancient fossils identified by Darwin as some of the “strangest animals ever discovered” places the creatures amongst horses, tapirs, and rhinos on the tree of life.

An anthrozoologist explores feline communication and cognition in an essay about domestic cats.