10 Extinct Monsters Of Planet Earth

Some people obsess over bigfoot and the Yeti, as if their discovery would be world-changing. But we know for sure that some now extinct animals were once much more monstrous and terrifying than any depiction of the Yeti. Many animals today which are considered small and harmless once had much bigger relatives, size plays a big role in the survival rates of beasts.\r
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Music credit -\r
Wizardtorium Kevin MacLeod (incompetech.com)\r
Licensed under Creative Commons: By Attribution 3.0 License\r