Weighing six tons and 3.5 meters high, the African Sahara Elephant is a powerful animal that has virtually no natural predators. He is extremely dangerous because he can step on and crush anything he feels is bothering or hindering him. Its huge ears allow it to hear any noise, while its sense of smell reaches 1.5 km. His brain weighs five kilos. The African Elephant is quite intelligent and has a very strong memory.Although species such as the Bumblebee or the Royal Cobra are dangerous because of their venom, what sets Black Mamba apart is its speed. Its size can reach four meters and its speed is 13 kilometers per hour. The bite of the Black Mamba (also known as the kiss of death) can kill 10 people, as it takes just two drops of its terrible poison to kill one. This poison, which contains neurotoxins and cardiotoxins, extinguishes the nervous system, paralyzes the victims and in half an hour leads to death. Its stings are almost 100% deadly, the pleasant thing though, is that these animals only attack when they feel threatened. When threatened, they can lift 1/3 of their body into the air. Black Mamba’s jaws are quite flexible, allowing it to devour prey that is four times the size of its head. It feeds on birds and mammals. The species is found in the savannas and rocky areas of South and East Africa, it hunts during the day and at night it usually returns to the same place to rest (it is typically said that the Black Mamba is shy and uses its extreme speed not to hunt , but to escape)Sea crocodile Sea crocodiles, weighing more than a ton and five meters long, reasonably cause terror in their passage. They kill hundreds of people a year, and have the greatest biting power of any animal in the world. Sea crocodiles, compared to sharks, are responsible for more human deaths. But their diet usually includes fish, birds, sea turtles, and mammals such as buffaloes, wild boars, and monkeys. Their deadliest attack is called a death cylinder. In this attack they watch the prey and at the first opportunity drag it and throw it in the water. In order to disorient it and prevent it from leaving the water, they turn it like a cylinder, so that it can be consumed more easily. Saltwater crocodiles live for about 70 years and despite their weight can swim at 29 kilometers per hour. Their species has been protected since 1971, because in the 20th century it was hunted and was in danger of extinction. Today there are an estimated 150,000 Sea Crocodiles in Australia.Lion the king of animal the lion is a dangeros animal because whenever he gets angry he becomes very depressive