Botswana's Okavango Delta is home to a multitude of dangerous creatures – and its murky channels are crocodile territory. Watch one of these fearsome reptiles cruise past our GoPro before giving the camera a few inquisitive nudges.

Just how tough is our filming equipment? We find out when a spotted hyena tries to satisfy its voracious appetite by clamping down its jaws on our GoPro. Get ready for a close-up look at one impressive set of teeth!