The
The cheetah is the world's fastest land animal. Cheetahs must learn to stalk their prey. When it comes to cheetahs, speed kills.
In terms of the number of humans killed every year, mosquitos by far hold the record, being responsible for between 725,000 and 1,000,000 deaths annually.
#1 Nile Crocodile
The Nile crocodile gets the number one spot because it is the only animal on the list to consider humans a regular part of its diet. It's just as likely to grab a human that strays too close to the water's edge as it would a wildebeest.
Four species of sharks account for the vast majority of fatal attacks on humans: the bull shark, tiger shark, oceanic whitetip shark and the great white shark.
There are a number of marine species that outlive humans, and the mammal species that holds the record for longevity is the bowhead whale, which can live for 200 years - or more.
After Chicken, Fish, Cattle, and Ducks, the Most Commonly Slaughtered Animals Are Pigs at 1.3 Billion Annually (FAO)
Toughest Animal for Brute Strength:
Scientists believe gorillas (Gorilla gorilla) have 20 times the strength of an adult man. These animals can be four to six feet tall and weigh up to 440 pounds. Gorillas live in the forests of Africa, specifically the Congo Basin.
Fastest land animal: Cheetah.
Saltwater crocodiles have one of the most powerful bite forces. They wait for prey then they strike without warning. Not only that they perform the "death roll." The death roll is used to drown their prey then dismember them. Just imagine being bitten, dragged, drowned, dismembered, and eaten by them.
Well, one species of animal is actually immortal! Immortality means 'eternal life', which is the ability to live forever! The turritopsis dohrnii is a species of jellyfish found in the Mediterranean Sea and around Japan and has been nicknamed the 'immortal jellyfish'…
While larger animals like sharks or hippos may seem a likely culprit, the animal that kills the most humans per year is actually the mosquito.
Mantis Shrimp: The Quickest Killers in the Animal Kingdom.
Another specimen had a recorded lifespan of 374 years. The tubeworm Escarpia laminata that lives in deep sea cold seeps regularly reaches the age of between 100 and 200 years, with some individuals determined to be more than 300 years old. Some may live for over 1000 years.
Ocean Quahogs (Clams)
Ocean quahogs live in the Atlantic and can live more than 400 years old. At 507 years of age, Ming the clam broke the Guinness World Record as the oldest animal in the world.
The increased longevity of humans is, in part, attributable to environmental changes; improved food, water, and hygiene; reduced impact of infectious disease; and improved medical care at all ages.
Said to be one of the most dangerous animals in Australia, the Saltwater Crocodile is an aggressive and territorial animal, and is the largest reptile in the world in terms of their mass – known to reach over 1000kg!
Its inland taipan snakes, box jellyfish, Sydney funnel-web spiders, and stonefish all rank among the most venomous of their kind. The best illustration of Australia's deadly-animal problem may be the Elapidae snake family: a venomous group characterized by its short fangs and agile nature.
Animals with no natural predators are called apex predators, because they sit at the top (or apex) of the food chain. The list is indefinite, but it includes lions, grizzly bears, crocodiles, giant constrictor snakes, wolves, sharks, electric eels, giant jellyfish, killer whales, polar bears, and arguably, humans.
Elephants can run up to 25 miles per hour. However, they remain the only mammal on earth that can't jump. They always keep one leg on the ground - even when running.