12 of the World’s Deadliest Animals That Eat Humans

Quick Take

• One big cat has killed more humans than lions, leopards, and cheetahs combined, and its hunting behavior is nothing like what you'd expect. Tigers' deadly history →
• The deadliest human predator on this list is not a lion, tiger, or shark. In fact, it is one most people would never think twice about near their home. The deadliest predator →
• Some of these animals don't turn man-eater out of desperation or hunger, and that distinction is what makes them far more terrifying. Why lions hunt humans →
• A snake making this list sounds outlandish, but that impression changes once you learn what was actually found inside one in Indonesia. Python attacks in Indonesia →

Man-eaters aren’t just animals that attack humans. They are predators that actively hunt people as prey. While rare, these cases are some of the most chilling in the natural world, turning powerful hunters into a real and persistent threat. Unlike defensive attacks or desperate acts of survival, true man-eaters deliberately target humans as part of their diet.

Some of the most well-known man-eaters include lions, crocodiles, tigers, and polar bears, but they aren’t the only ones capable of seeing humans as prey. Across the animal kingdom, there are species that, under the right conditions, will hunt and kill humans. In this list, we explore 12 of the deadliest animals known to cross that line and the terrifying reasons why it happens.

1 – Tigers

• Tigers have killed more humans than any of the big cats. They have directly attacked and killed more humans than any other wild mammal.
• In the early 1900s, about 1,000 people died annually in India from tiger attacks. One notorious Bengal tigress reportedly killed 486 people.
• Unlike leopards and lions, man-eating tigers seldom go to human habitations to look for prey. Most attacks happened in tiger territory, and they mostly occurred during daylight hours.
• In 2008, habitat loss from Cyclone Sidr increased tiger-human encounters on the Indian side of the Sundarbans.

2 – Lions

• Man-eating lions aggressively enter human habitats at night and during the day to hunt for prey.
• They may become man-eaters due to starvation, illness, or old age, though healthy lions have also been reported as man-eaters.
• The infamous Tsavo lions in British East Africa killed and ate over 130 men before being stopped.
• African lions may feed on humans as a supplement to other foods, not just as a last resort.

3 – Leopards

• Man-eating leopards are a small proportion of the leopard family, but they can be a major menace in some areas.
• Unlike tigers, leopards commonly become man-eaters after scavenging on human corpses.
• In parts of Asia, they have attacked at night by breaking into homes; in Africa, attacks are less common but can happen in daylight.
• Notable cases include the leopard of Panar, the leopard of the Golis Range, the leopard of Mulher Valley, the leopard of Kahani, and the leopard of Punanai.

4 – Wolves

• Wolves rarely kill people and are among the least threatening carnivores for their size and predatory potential.
• Male wolves are often more aggressive than females and may attack for reasons other than prey.
• Most reported wolf victims are children.
• Habituation can contribute to attacks when wolves lose their fear of people or are fed by humans.

5 – Dingoes

• Dingoes are Australia’s legendary wild dogs, though they also inhabit Southeast Asia.
• They are believed to have descended from Asian ancestors introduced to Australia about 4,000 years ago.
• Dingoes rarely attack humans, and only two fatalities have ever been recorded in Australia.
• The most notorious case was the disappearance of Azaria Chamberlain in 1980.

6 – Polar Bears

• Polar bears are giant shoreline and land carnivores with immense strength and intelligence.
• Undernourished and young polar bears are known to hunt and eat humans.
• Most polar bear attacks are not driven by predatory intent, but cub protection and territorial disputes can be fatal.
• Man-eating bear attacks are uncommon, but they can happen when prey is scarce or diseased.

7 – Brown Bears

• Brown bears have been reported to hunt campers and hikers in North America.
• In Yellowstone National Park, Lance Crosby was attacked and killed by a grizzly bear in 2015.
• Timothy Treadwell and Amie Huguenard were killed by a brown bear in 2003, and the bear had almost fully eaten the couple.
• In Kamchatka in 2008, two geologists were killed by starving brown bears while working at a salmon hatchery.

8 – Hyenas

• Hyenas eat human flesh but generally fear humans, making them less dangerous than most big cats.
• Both striped and spotted hyenas can kill an adult human, especially when prey is scarce.
• Spotted hyenas are more aggressive, larger, and more dangerous than striped hyenas.
• The aardwolf and brown hyena do not usually prey on humans.

9 – Crocodiles

• Crocodiles mostly attack humans in areas where they are native.
• The Nile and saltwater crocodiles have attacked and killed more humans than any predator that preys on humans.
• In East Africa, habitat overlap with poor infrastructure has made crocodile attacks especially deadly.
• The mugger crocodile is another major human killer in Asia, though not as deadly as Nile or saltwater crocodiles.

10 – Alligators

• American alligators seldom prey on humans, even though they can kill prey larger than humans and live near populated areas.
• Reported attacks often involve opportunistic encounters, especially with the elderly, small children, or careless people.
• Most alligators avoid human contact when possible.
• The few reported attacks may not always have been in search of prey.

11 – Snakes

• Only a handful of snake species can swallow an adult human, though some giant-serpent claims remain unverified.
• In Indonesia, a 23-foot python swallowed an adult woman in 2017, and a reticulated python ate a 54-year-old woman in 2018.
• Constricting snakes can kill prey too large to swallow, and Burmese pythons have killed healthy adult men.
• Large constricting snakes have also attacked children and infants.

12 – Sharks

• Only a few shark species really threaten humans.
• The most dangerous species may eat anything, including floating humans after shipwrecks.
• Sharks may also bite out of mistaken identity or curiosity, such as a white shark mistaking a surfboard rider for a seal.
• Only four shark species have been reported to fatally attack humans: oceanic whitetip, bull shark, great white shark, and tiger shark.