A hummingbird chick in Panama mimics a poisonous caterpillar to avoid predators—a rare case of bird-to-insect mimicry. When ...

Swallows, one of the real signs of spring to many, start to soar overhead from early March. Originally cave dwellers, they ...

A chance encounter in a Panama rainforest has uncovered a new defensive behavior in white-necked jacobin hummingbird chicks.

A baby hummingbird hatches. But it has fluffy feathers on its back, looking just like a dangerous caterpillar. Could this be ...

Learn why scientists say it’s a rare case of animals exploiting their glow for visual signaling.

Hidden in plain sight: the secret differences between male and female Wood Pigeons that most UK birdwatchers miss. While these ubiquitous garden birds might appear identical at first glance, several ...

Recent research has highlighted the need to improve the identification and understanding of female birds to enhance conservation efforts. The study, published in Ibis, outlines how a long-term focus ...

In the United States, two drugs have been approved to treat female sexual interest/arousal ... what Viagra was designed to do in the male body. Usually, after sexual stimulation in a male, there ...

Look at one and then the other. Can you tell which brain is female and which is male? You can't. Humanity has been hunting for sex-based differences in the brain since at least the time of the ...

A long legacy of bias Are male and female brains wired differently? The question has beguiled humanity for centuries, but scientists have only recently begun to find answers. That's partly because ...

Since the start of 2025, over 27 million egg-laying hens — 9 percent of the entire national flock — have died from the bird flu or have ... laws that ban killing male chicks.