Green honeycreepers are found in humid forests from Mexico south towards Brazil and eat fruit, arthropods, and plant nectar. “Many birdwatchers could go their whole lives and not see a bilateral ...

Researchers have discovered an extraordinary, vibrantly colored tropical bird with "female" feathers down one side of its body and "male" feathers down the other. Female green honeycreepers ...

When a homeowner in northern Florida looked out at her bird feeders the first weekend in March, she thought she saw a red-headed woodpecker. There was a brown bird nibbling at the wild bird seed with ...

Researchers have spotted an “extremely rare” green honeycreeper in Colombia that’s half female and half male. The bird’s plumage is divided directly down the middle, with blue feathers typical of ...

Bilateral gynandromorph green honeycreeper (Chlorophanes spiza) photographed in the wild in Colombia. (Credit: John Murillo.) An “extremely rare” half-female, half-male bird has been caught on film, a ...

Source: fir0002, via Wikimedia Commons. Traditionally, birdsong has been viewed as a male trait, and this bias has dominated research on the behavior. “For a long time, scientists thought that female ...

Sex chromosomes, which determine whether an individual is male or female, originated from an ordinary pair of chromosomes. In mammals, females carry two X chromosomes, while males have one X and one Y ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. A zoologist from the University of Otago in New Zealand spotted a ...

A homeowner in north Florida spotted the rare bird when it stopped for something to eat at her bird feeder, she told McClatchy News. Nick Nicholson via Unsplash When a homeowner in northern Florida ...

An "extremely rare" half-female, half-male bird has been caught on film, a sighting that has only been made once more than 100 years ago. Zoologist and professor at the University of Otago in New ...