Scientists trawled thousands of volunteer surveys over 25 years to understand what imperils the insects.
Genetics seem to help the world’s most wide-ranging bird of prey fly thousands of miles each year.
You don’t need specialized skills to get a hurt or stunned bird to safety.
Using song patterns to predict whale migrations could help us protect them from ship strikes.
A new conservation plan weighs the burden and interests of landowners, biologists, and butterfly enthusiasts alike.
The birds are abandoning their old song with unprecedented speed.
Residential and migratory birds are changing their geographic ranges in different ways.
Fish, insects, and birds navigate treacherous routes with superpower senses humans can only dream of.
DNA from tooth enamel helped scientists trace where humans grew up and how they spent the rest of their lives.
Warmer winters could have a surprising impact.
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