Forbes contributors publish independent expert analyses and insights. I write about the world of biology.

Nature never ceases to amaze us, and one of its most fascinating marvels is a bird that can literally sleep in the sky — while flying — for months at a time. This incredible avian feat belongs to the ...

Ostriches, emus, rheas, and other giant flightless birds now inhabit six continents separated by oceans. Their global distribution has puzzled scientists for decades, as these massive ...

Scientists discovered that ostrich ancestors could fly across oceans. Later, they lost flight and adapted on land.

The giant moa was the world’s largest bird, up to 11 feet high and 500 lbs., a peaceable, plant-eating giant that lived on the edges of forests in New Zealand’s South Island. Then the island’s first ...