A monarch flies around flowers along the Hudson River in downtown Manhattan.

Animals are finding paths blocked by roads, homes, oil wells. Butterflies are fading from forests. Giant fish are running into dams, as ancient routes are disrupted.

An estimate that as many as 1.3 million wildebeest move across the Serengeti Mara landscape each year has been cut down to ...

You’ve likely heard of seasonal migration, where certain animals move from one location to another depending on external factors like weather. However, did you know there’s a form of migration that ...

Welcome to the first column of Birdbrained Science! In this biweekly column, I’ll be talking about a variety of scientific topics — bird-related, brain-related and otherwise.

Hummingbird season is coming to an end, and this is when you should be taking down your feeders, according to where you live.

Six million antelope move across South Sudan in a spectacle larger than the Serengeti but threatened by war and poaching.

Animal migration has fascinated humans for millennia. And for good reason: Some of the most astonishing feats of endurance are performed by long-distance migrants, such as the nine-day non-stop flight ...

Get your news from a source that’s not owned and controlled by oligarchs. Sign up for the free Mother Jones Daily. Field biologists tend to be a patient lot, often resigned to long days and weeks in ...

An analysis of plant diversity and soil health across the bison migration corridor suggests free-roaming bison lead to more ...