1, shark
As early as 300 million years before dinosaurs appeared, they had existed on the earth for more than 500 million years, and there was almost no change in the past 1 100 million years. Sharks, known as mako sharks and mako sharks in ancient times, are giants in the ocean, so they are called "wolves in the sea".
2.piranha
This small fish is a more fierce hunter than tigers and hyenas. Sharp teeth and the ability to swim quickly in the water can quickly eat prey. Dozens of hungry piranhas can eat half a cow in a few minutes, and their sharp teeth can even bite off wires. They are one of the fierce beasts in the water!
3. Bear
Bears are usually gentle, but when provoked or in danger, they are prone to rage and fierce fighting. You can tear your prey to pieces!
4.crocodile
In people's minds, crocodiles are "evil fish". When it comes to crocodiles, I immediately think of maw, dense and sharp teeth, hard armor and ready to eat people.
5.tiger
Fierce forest beasts will become their food once they fall into the tiger's mouth, which is extremely aggressive.
6.cheetah
Cheetah is the fastest animal on land, and its running speed can reach120km per hour. Cheetah is a carnivore, and its main food is all kinds of small antelopes (gazelles, springboks) and ostriches. Cheetahs kill only one prey at a time and run very fast. Few prey can escape its capture. This is a very dangerous beast.