New examinations of skeletons and animal embryos have allowed researchers to discover how mammals developed protruding, flexible noses. This study contributes to uncovering the origin of mammals' ...

Using genetic analysis of modern species, researchers have confirmed what has long been assumed to be the case – the early mammals that evolved when dinosaurs were roaming the land became nocturnal ...

Despite evidence that the earliest examples of creatures such as mammals and reptiles gave birth to live young, they actually may have laid eggs, a scientist argues. "These eggs are probably out there ...

A new study by University of Alberta paleontologists shows that one type of ancient reptiles evolved a special type of tooth enamel, similar to that of mammals, with high resistance to wear and tear.

When asked to draw their local wildlife, 401 UK schoolchildren aged 7 to 11 most commonly drew mammals and birds, while amphibians and reptiles appeared in the fewest drawings, suggesting imbalances ...

North America's formidable rattlesnakes face numerous predators, including venom-resistant kingsnakes and Eastern indigo ...

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In the long history of life on Earth, one of the biggest turning points came when our distant ancestors stood tall—literally. The way mammals stand and walk today, with limbs tucked neatly under the ...