Why don’t we have many giant animals anymore?

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Exposing the Big Game's avatarThe Extinction Chronicles

ByMichael Dharpublished1 day ago

Dinosaur bones aren’t lying: animals really did use to be bigger.

https://www.livescience.com/why-no-more-giant-animals

A boy standing in front of the interactive T. rex at the American Museum of Natural History. We see the silhouette of the boy against the large T. rex dinosaur looking down at him from a jungle.

A boy tries out the interactive T. rex during the media preview March 5, 2019 of “T. Rex: The Ultimate Predator” an at the American Museum of Natural History in New York City.(Image credit: Photo by TIMOTHY A. CLARY/AFP via Getty Images)

Prehistoric giants used to populate theEarth. These behemoths included mighty dinosaurs, airplane-sizepterosaurs, massive crocodiles and snakes, and even armadillos the size of cars. But today, there are just a few big animals on our planet.

What happened? Why aren’t there many giants left anymore?

First of all, there’s plenty of fossil evidence that the ancient past really did have larger animals — beasts that were humongous…

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