Evolution of the Earth Shakers.

EXTINCT animals; DINOSAURS; DINOSAUR extinction; BIPEDALISM; TYRANNOSAURUS rex; BIOLOGISTS

OF all the animals ever to have roamed the planet, the iconic long-necked, long-tailed dinosaurs known as sauropods stand unrivaled. Sauropods probably needed to grow fast because although adults may have been safe from predators, hatchlings were easy prey that had to compete with other groups of dinosaurs and animals for resources. In other words, like sauropods in general, the heftiest sauropods occupied somewhat different ecological niches from one another. A GROWING FOSSIL RECORD Figuring out how sauropods evolved their uniquely enormous sizes has proved challenging because historically they had a relatively terrible fossil record - much worse than that of many other land animals and orders of magnitude worse than that of most animals that live in the sea. [Extracted from the article]

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