Discover which woodpeckers mate for life, and which pair up and then split up. Also learn how long pileated woodpeckers live.

Why do Valentine's Day cards use pictures of cardinals to symbolize love and romance? A cardinal's red plumage could represent one's pulsating heart upon seeing their beloved. I'm giving my wife, ...

Finding a partner and sticking with them for life isn’t all that common in the animal world, but a few species really commit. Scientists have found lifelong bonds among creatures in trees, rivers, ...

Loyalty isn’t just a human trait. In the wild and at home, certain animals form unshakable bonds with their partners, families, and even humans. Some stay devoted to one mate for life, others never ...

For jackdaws—black and gray relatives of crows—family comes first, according to a recent study published last month in Nature Communications. Scientists put these cognitively complex birds to the test ...