We usually think of birds as small and delicate, but did you know that some of the biggest birds in the world have special ...

The research team at New Mexico Tech has constructed and tested pheasant, mallard duck and pigeon drones and robots. Their ...

“It will also make the litter sticky, and it will stick to the birds’ feet and cause pododermatitis.” Pushing for growth with a high-protein diet can also cause issues, she adds. “A ...

Analyzing a leg bone from a fossil site in Colombia, scientists have identified a massive “terror bird” that lived about 12 ...

While past terror bird fossils placed the meat-eating birds at 3 to 9 feet tall, new findings suggest that some were even ...

The bone, described two decades after its discovery, suggests the species might have grown up to 20 percent bigger than other ...

Green anacondas can be 20 to 30 feet in length, and can weigh over 550 pounds, according to National Geographic. Marshes, ...

Researchers including a Johns Hopkins University evolutionary biologist report they have analyzed a fossil of an extinct ...

Terror birds were apex predators some 12 million years ago in South America. A newly published discovery could be the largest yet.

Emperor penguins are large birds that stand around 4 feet high and weigh up to 100 pounds. They have black feathers on the ...

The fossilized leg bone of the terror bird went unidentified for almost 20 years. Nearly 12 million years ago, the largest ...