Zoology

A winning photograph shows millions of Monarchs dripping from Mexico’s fir trees in winter.

Are hiking and biking incompatible with protecting wildlife?

17 million insects cross the Pyrenees each year, with enormous impacts on the environment.

The sharpshooter catapults its urine at high speed.

By performing tricks for birds, monkeys, and other creatures, researchers hope to learn how they perceive and think about their world.

A tiny, charismatic frog in Brazil is revealing secrets of a killer fungus.

This unique community of orcas is starving to death.

My Octopus Teacher’s Craig Foster considers the uncharismatic.

This island of macaques rebuilt their social networks after calamity.

Lee Alan Dugatkin on his 3 greatest revelations while writing The Well-Connected Animal.

Plainfin midshipman fish migrate from the deep sea to spawn—and then things get weird.

A new consensus emerges.