To reproduce, animals need a male and female. Together they can create offspring, or babies. Some animals, such as chickens, fish and snakes, lay eggs which contain their offspring. Other animals ...

Colossal Biosciences says it used novel gene-editing technology to alter gray wolf DNA to breed the animals. Dire wolves recently featured prominently in the HBO series Game of Thrones.

Birds do it, and bees do it. Indeed, researchers estimate that over 99.9% of eukaryotes reproduce sexually. What, then, are the true costs and benefits of sex? Yet again, this simple example ...

Many animals change landscapes by acting as ‘ecosystem engineers’. Protecting and restoring nature can help us become more ...

An in-depth study of aspects of the physiology of reproduction and lactation in monogastric and ruminant animals. The emphasis is placed on applying the understanding of the physiological processes to ...

This big egg belongs to an ostrich. Some animals, like lizards, lay much smaller eggs and much more of them. During sexual reproduction a sperm from the male joins with an egg from the female.