A few days ago, this video started to make its viral rounds. It showed how a huge goliath grouper swallowed a shark whole. That's right. Think you've sharks to be afraid of when you're in the sea? Think again. There are far more animals deadlier than them.

Here's the video again:

But sharks are the least of your worries. Here are some other animals you need to be afraid of.

Elephants

Ten times more dangerous than sharks.

Hippopotamus

Cute but not friendly. 2,900 deaths a year.

Crocodiles

Going into a lake is such a bad idea.

Freshwater snails

Harmless? No. They kill over 200,000 people a year.

Mosquitos, the deadliest.

They infect 500 million every year and kill 1 million people worldwide. 

Watch the video below: