Top 10 Most Aggressive Animals

Hippopotamus: The common hippopotamus, or hippo, is a large, mostly herbivorous mammal in sub-Saharan Africa, and one of only two extant species in the family Hippopotamidae.

Wild Boar: The wild boar, also known as the wild swine, common wild pig, Eurasian wild pig, or simply wild  is a suid native to much of Eurasia  and has been introduced to the Americas and Oceania. 

Saltwater Crocodile: The saltwater crocodile, also known as the estuarine crocodile, Indo-Pacific crocodile, marine crocodile, sea crocodile or informally as saltie.

Black Mamba:  It is native to parts of sub-Saharan Africa. First formally described by Albert Günther in 1864, it is the second-longest venomous snake after the king cobra.

Tasmanian Devil: They will fight to the death to defend their food. Unless you want to challenge, keep away,Dad:[imitates Tasmanian devil grunting sounds.

Sun Bear: The sun bear is a species in the family Ursidae occurring in the tropical forests of Southeast Asia,it's abig animal.

Wolverine: The wolverine, Gulo gulo, also referred to as the glutton, carcajou, skunk bear, or quickhatch, is the largest land-dwelling species of the family Mustelidae.

Cassowary: The cassowaries are ratites in the genus Casuarius and are native to the tropical forests of New Guinea, nearby islands, and northeastern Australia.

Cape Buffalo: The African buffalo or Cape buffalo is a large African bovine. Syncerus caffer caffer the Cape buffalo, is the typical subspecies, and the largest one, found in Southern and East Africa.

Elephant Seal: The power of lust gives these beasts the aggression that sends them absolutely insane when a rival male wanders into their territory.