Animals

As bird flu outbreaks continue to affect animals, experts answer questions about keeping pets and their owners healthy

In the U.S. 42 species of birds have low and steeply declining populations that put them on the brink of disaster, scientists say

A new report finds that butterfly populations in the continental U.S. declined by one fifth between 2000 and 2020—but it’s not too late

Animal emotions—including joy—may be key markers of conscious beings

In this week's news roundup, we dig into measles misinformation, ozone recovery and new findings on using nasal cartilage to treat knee injuries.

Ants’ tactics to avoid traffic jams could be applied to future self-driving cars

On its quest to bring back the extinct woolly mammoth, Colossal Biosciences has developed the woolly mouse

Avian influenza continues to fuel egg shortages. Plus, a delayed CDC study on household cats reveals concerning human exposure routes

A rare and deliberate signal between a mother chimpanzee and her daughter raises new questions about ape communication, culture and the meaning of sharing a language

White-throated Sparrows demonstrate that traits we usually associate with sex can be influenced by genes that are not on sex chromosomes

The Internet’s vast cat resources help researchers chart cat eye evolution

Scientists have reported a new strain of bird flu in Nevada dairy cattle. And viral spread in pet cats has fueled worries over increased risk of exposure to humans