What's the first thing that comes to your mind when you think about a T-Rex? It's huge, fast and probably really angry. So you'd remain standing still like a stone if you saw one. But that's exactly what you shouldn't do! Here's a video about the insane vision of a T-Rex. It turns out, this giant creature couldn't see moving objects! So you'd better run as fast as possible if you meet this huge Dino in the jungle!

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