In the end, the researchers found that only a few animals elicited both fear and disgust. On the fearful end sit vipers, wasps, snakes, and bulls, while the most repulsive animals include roundworms, tapeworms, maggots, louse, and cockroaches. The animal perfectly situated in the middle of fear and disgust? Spiders.
Ungainly as it is, the hippopotamus is the world's deadliest large land mammal, killing an estimated 500 people per year in Africa. Hippos are aggressive creatures, and they have very sharp teeth. And you would not want to get stuck under one; at up to 2,750kg they can crush a human to death.
A hippo would win a fight against a polar bear.
Instead, the hippo needs one or two bites to incapacitate the polar bear. Its massive teeth would penetrate the bear's fur and skin, breaking bones and ripping into organs. In this rare case, speed on land would only matter at the beginning of the fight.
The honey badger is not afraid of anything.
For example insects, arachnids and crustaceans don't feel any type of emotion. They don't show any signs of fear or pain. This is just down to the fact that their brain is too simple to hold this information.
Cardiovascular disease is the top cause of death globally. In the map we see death rates from cardiovascular diseases across the world.
The most murderous mammal species? Meerkats — around 20 percent of meerkats meet their end at the hands (and teeth) of other meerkats.
#1 The Fearful Deer: High Alert for Dangers
Deer are known to be easily frightened and will run at the slightest sound or movement. They have evolved to be on high alert for potential dangers, including predators, humans, loud noises, and unfamiliar objects.
Fear of humans suppresses the movement and activity of pumas, bobcats, skunks, and opossums, which benefits small mammals. As their own predators respond to their fear of humans, deer mice and wood rats perceive less risk and in turn forage for food farther away and more intensively, they found.
Ocean quahog clam (Arctica islandica): 507 years old
The individual animal that holds the confirmed record for the longest-lived is a clam from Iceland, found off the coast of the island nation in 2006, which was 507 years old, calculated by counting the annual growth bands in its shell.
One of the biggest myths is fire. Lions are not afraid of campfires and will often walk round them and see what's happening. However, keeping a fire between you and a lion is probably better than nothing!
Honey badgers are small, but aren't afraid to take on larger animals. Honey badgers are often called the fiercest animal on the planet. They also hunt poisonous snakes with ease.
The strongest land animal in the world is the elephant. The typical Asian elephant has 100,000 muscles and tendons arranged along the length of the trunk, enabling it to lift almost 800 pounds.
The Scoop. The honey badger has been called the world's most fearless animal because it doesn't hesitate to attack animals much larger than itself- even lions and crocodiles! Honey badgers are found in arid grasslands and savannahs and even rainforests.
The results show that the elephant wears the crown in the animal kingdom – but only slightly. Elephants had a win rate of 74%, just fractions of a percent ahead of their single-horned cousins – the rhinoceros – in second place, also on 74%. Not far behind in third place is the grizzly bear, at 73%.
To date, there's only one species that has been called 'biologically immortal': the jellyfish Turritopsis dohrnii.
It's called turritopsis dohrnii! We've all heard the saying that cats have nine lives, right?
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.