Q. When we studied high school biology, our teacher said more than 99 percent of animals lay eggs and only a few give live birth. That percentage seems too high. Humans, dogs, cats and cows are ...

Q. When we studied high school biology, our teacher said more than 99% of animals lay eggs and only a few give live birth. That percentage seems too high. Humans, dogs, cats and cows are ...

Eggs are one of nature’s most fascinating creations. They come in many sizes, shapes, and colours. There are a variety of eggs ranging from the tiny specks to the giant, hard-shelled eggs. An egg is ...

Female lineages of European cuckoos lay eggs with colorful shells and intricate patterns specialized to deceive more than 100 avian hosts into fostering their chicks. Parasitic cuckoo eggshells show ...

Snakes, like most reptiles in the world, are oviparous. This means that rather than producing live young ones, the way mammals do, snakes produce an immature single cell — an egg. Most snakes follow ...

A curious aspect of tree frogs is that they often lay their eggs on the ground where the risk of predation by natural enemies is greater than in the trees where they live. A research team suggested ...

Scientists in Queensland found a “cryptic” animal laying eggs in the bark of trees and discovered a new species, a study said. Photo from Matthew Connors In the forests of northeastern Australia, a ...

A tree frog: female (larger individual below) laying eggs, which are protected by the 'foam nest' and male (smaller individual above). When it comes to laying eggs, tree frogs have some unusual habits ...

Great tits can't complain about a lack of attention. NIOO has hung nearly two thousand nesting boxes for this 'model species' ...

COLORADO, USA — Two bald eagle couples in Colorado have laid eggs. The two bird pairs — one in Standley Lake Regional Park and another in Fort St. Vrain — laid at least one egg each in February, as ...