So you might be tempted to think that they use up comparable amounts of energy. You’d be very wrong. The swan spends around ...

Our understanding of animal behavior depends on observation. Researchers can study how animals are born, grow and develop. We can gather evidence of how they interact with each other and their ...

Quetzalcoatlus lived around 72 to 66 million years ago during the Late Cretaceous period, when it blocked out the sun with its 12 m (40 ft) wingspan. When it landed on the ground, it stood at a ...

Findings of a study, published in PeerJ, provide new insights into how pterosaurs managed to take flight despite reaching sizes far larger than modern animals. The research sheds new light on the ...

Wallace’s Flying Frog: Native to Malaysian and Bornean forests, uses webbed legs for gliding up to 50 feet, mostly tree-dwelling. Bat: The only flying mammals, bats come in various sizes and have ...