20. Basking Shark
The basking shark is the second largest fish in the sea, next to the whale shark. Can you imagine if you were swimming and you saw this image coming towards you? The gaping mouth of the shark is used as a giant suction that overpowers anything in its wake. They’re really just docile bottom feeders with no teeth, they just happen to look terrifying and are classified as a shark, which doesn’t help their reputation.