This week, Seattle-based startup Radical revealed it has successfully tested a full-scale prototype of its super-thin, ...

Europe’s wilderness hides some surprisingly large and powerful birds. This countdown explores seven species that stand out ...

A rare 'near threatened' wader bird has been spotted in the nature reserve of the region. The sighting of the Curlew was ...

Birds are the closest living relatives of dinosaurs, not crocodiles. Modern birds evolved from theropod dinosaurs. They ...

To find out, Elena Tena, a biologist at Doñana Biological Station in Seville, Spain, and her colleagues attached ultra-light ...

These movements into Alameda County, and even Contra Costa County, are the first to be documented in over 100 years.” ...

These enormous moths are nature’s masterpieces. Learn which species are the largest and what makes each one so extraordinary.

The Andean condor is the world's biggest bird of prey, which can weigh up to 15 kg and has a wingspan of up to 3.3 meters.

The Steller's sea eagle is the world's biggest eagle in terms of weight with a wingspan of up to 8.2 feet. This large bird of ...

Full-grown Red-Tailed Black Cockatoos have a wingspan of about 39 inches, or 1 meter. So, while they might not be as large as ...

While on a boat tour off the Northern California coast earlier this month, a group of bird-watchers spotted a rare and ...

Massive wings slice through air with barely a flap. One bird crosses oceans without resting, another floats over mountains like a ghost, and a prehistoric giant once soared with a wingspan larger than ...