DNA analysis reveals the big, flightless moa birds ate — and pooped out — 13 kinds of fungi, including ones crucial for New Zealand’s forest ecosystem.

A few fossilized body parts hinted at an enigmatic bird's close ties to waterfowl like ducks and geese. A newfound skull may bolster that idea.

Dogs in Bristol were among the first in the country to woof down snacks made from lab-grown meat in a bid to advance the future of alternative protein sources and help cut carbon emissions.

Toxic substances used in flea and tick treatments pet owners give to their dogs and cats have been detected in birds' nests, ...

Some paleontologists think that fossils recovered from Antarctica are evidence of birds similar to modern geese and ducks that lived alongside the dinosaurs.

Rabbits' teeth grow continuously, and bunnies wear them down by munching fiber-rich foods. Scientists suggest rabbits recycle ...