Take a break from the bench to puzzle and peruse.

In Chapter 1, “An ABC of Early Classification,” author David Bainbridge explores the theological roots of zoology.

A new book explores the history of scientists’ efforts to classify living things.

Cats’ tongues are covered in tiny spines called papillae, which help wick moisture from the mouth and onto the fur.

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.