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species diversity

A snapshot of life 135 million years ago in Early Cretaceous England: A spinosaur (center) claims an ornithopod carcass, while smaller tyrannosaurs (left) and dromaeosaurids (bottom right) look on in frustration. Credit: Anthony Hutchings.

Rare Dinosaur Teeth Reveal Hidden Diversity in Early England

Categories Life & Non-humans
The alligator gar, and other gar species, are “living fossils” that it shows little species diversity or physical differences from ancestors that lived tens of millions of years ago. (Photo by Solomon David)

How ‘Living Fossils’ Like Gars Persist Over Millions of Years

Categories Life & Non-humans

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