These would be alligators and crocodiles, with the Salt Water Croc topping off the list. Out in the ocean we have sharks, killer whales and the good ol giant squid. In mammals we have to consider one family with the meanest attitude of them all, namely the badger/wolverine family.
These animals have been described in the Guinness Book of Records as the "most fearless animal in the world" A pair of honey badgers take on a pride of lions. It is not for nothing that the honey badger has earned the reputation of being the most fearless animal in the world.
#1 Crocodile
This reptile's skin has been compared to a suit of armor. The bony structures on a crocodile's back, tail, and head are called scutes. Scutes are made of a solid material called keratin. If you see an animal with horns, those horns are probably made of keratin.
And the strongest known bite force of the entire animal kingdom is…. The Crocodile -- specifically, the Saltwater Crocodile (the highest recorded “live” bite of 3700 PSI) and the Nile Crocodile (estimated 4000-5000 PSI)!
- The Saltwater Crocodile has the strongest bite force of any animal in the sea. - Bull Sharks are noted for having the strongest bite of all sharks. - The Blue Whale is one of the largest and "strongest" vertebrate animals of all time.
Pangolins! These solitary, primarily nocturnal animals, are easily recognized by their full armor of scales.
Tardigrades are among the most resilient animals known, with individual species able to survive extreme conditions – such as exposure to extreme temperatures, extreme pressures (both high and low), air deprivation, radiation, dehydration, and starvation – that would quickly kill most other known forms of life.
In terms of muscular strength, tigers are stronger. Lions live in Africa and India. Lions are the second largest of the five big cats in the genus panthera.
In the battle of the grizzly bear vs tiger, a Siberian tiger would win a fight against a grizzly bear. The Siberian tiger is an ambush predator, and it's the only big cat that comes close to the grizzly bear in terms of size and power.
An elephant would undoubtedly beat any other land animal in a fight.
Big cats such as lions, tigers and cheetahs have some of the sharpest canine teeth in the animal kingdom. These long, dagger-like weapons are used to stab – biting down deeply into the throats of prey to bring them down.
The anteater, on the other hand, is one mammal with virtually no bite force. In fact, it can barely move its jaws at all! Anteaters collect ants and other foods by extending a long tongue and drawing it back into their mouths.
Computers don't lie: T. Rex was shown to have a bite force of over 10,000 pounds per square inch, enough to bite through the head and frill of an adult Triceratops or even (just possibly) penetrate the armor of a full-grown Ankylosaurus.
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.
Man's best friend is actually one of the world's deadliest mammals. Worldwide, dogs are responsible for about 25,000 human deaths from rabies each year resulting from maulings and bites.
1 Wild Boar
These animals frequently place humans on the run with their extremely bad temper and tendency to attack in a ferocious flurry of razor sharp tusks. Wild Boar charges may at times be fatal due to the power and mass of the enraged animals, which may respond with force to any perceived invasion of territory.
Even the Guinness Book of Records has attributed the primacy of the world's most fearless animal to the honey badger while National Geographic defines it as the worst animal in the world.
Elephants and rhinos are the animals most likely to kill lions. The humble porcupine is a threat to mighty lions. A crocodile is an animal that will attempt to prey on lions.