Big-hearted corvids

Ravens, crows, magpies and their relatives are known for their exceptional intelligence, which allows them to solve complex problems, use tools or outsmart their conspecifics. One capability, however, that we humans value ...

Inbreeding detrimental for survival

Biologists have long known that inbreeding can be detrimental. Inbreeding results in less genetic variation, making species more vulnerable if changes occur that require them to adapt.

Purple martin migration behavior perplexes researchers

Purple martins will soon migrate south for their usual wintertime retreat, but this time the birds will be wearing what look like little backpacks, as scientists plan to track their roosting sites along the way.

Songbirds silenced as Colombia fights wildlife trafficking

The metal doors of a shoebox-sized cage open up and a bird tagged #811 launches into a giant aviary. The palm-sized finch performs a midair pirouette, lands on a willow branch and curiously twitches its saffron-colored head ...

The brains of birds synchronize when they sing duets

When a male or female white-browed sparrow-weaver begins its song, its partner joins in at a certain time. They duet with each other by singing in turn and precisely in tune. A team led by researchers from the Max Planck ...

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