WATCH: What if 50% of everything went extinct?

Humans are to blame for up to one million species facing extinction around the world, and, thanks to climate change, global warming and increased pollution, Planet Earth could already be in the middle of its sixth major extinction.

WATCH: What if you were swallowed alive?

Whether you're in the jaws of a shark or crocodile, forced through the digestive system of a reticulated python, or helplessly trapped inside a whale... It's a terrible situation to be in.

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