What Animal Can Kill a Lion? The Real Predator List

The animal that can kill a lion isn’t a single creature — it’s a short, surprising list, and most of them never set out to do it. Lions sit at the top of Africa’s food chain. Sitting there doesn’t mean untouchable.

Key Facts

• Nile crocodiles, with a bite force around 3,700 psi versus a lion’s ~1,000 psi, are the only non-human predator that regularly kills and eats adult lions caught at the water’s edge.
• Cape buffalo — nicknamed “Black Death” — defend their herds so violently that they’re the single largest large-mammal killer of wild lions; a 1,800-pound bull can gore a male to death in seconds.
• A 2019 study by Julian Kerbis Peterhans of the Field Museum, published in the Journal of East African Natural History, documented about 50 lions injured or killed by porcupines since the 17th century.
• Spotted hyena clans 20–30 strong have been recorded killing lone lions in the Serengeti, especially injured males without a coalition to back them up.
• The single largest cause of lion death today is people — roughly 600 lions killed each year through trophy hunting, retaliation after livestock losses, snares, and poison.

In short: A small list of animals really can kill a lion — but the list of animals that actually eat one is even shorter. Most “lion killers” are big, well-armed herbivores defending themselves, plus a couple of unlikely small ones (a porcupine, a snake) that get the king through pure bad luck.

In short: Few animals truly prey on lions: the Nile crocodile and, as a clan, spotted hyenas. Most ‘lion killers’ are large herbivores — Cape buffalo, elephants, rhinos, hippos, giraffes — defending themselves. A porcupine quill can also kill through infection. The biggest killer of lions today is humans, taking about 600 a year.

The Question Behind the Question

Ask the internet what animal can kill a lion and you’ll get a top-ten list ranked by who would “win in a fight.” That framing misses what biologists actually see in the field. Three different things are going on, and they don’t belong on the same list.

One: true predators — animals that hunt, kill, and eat lions. There are almost none. Two: defensive killers — large prey species that turn the tables when cornered or protecting young. There are several, and they kill lions often. Three: quiet killers — small animals, infections, or pure misfortune that ends a lion’s life without anything resembling a fight. Splitting the question this way is the only honest way to answer it.

Animals That Actually Eat a Lion

Here’s the short list. And it really is short.

The Nile crocodile is the only non-human animal that meaningfully preys on adult lions. A big one cracks 3,700 psi — almost four times a lion’s bite — and its tactic of latching on and pulling underwater nullifies every advantage a cat has on land. Lions drinking at unfamiliar pools, cubs crossing channels, and males pushed to marginal territory all turn up in croc stomach contents across the Okavango and the Luangwa. The crocodile doesn’t fight the lion. It removes the lion’s ability to breathe.

Spotted hyenas are the runner-up, and only as a clan. One-on-one, a lioness kills a hyena. At a ratio of roughly four-to-one, the tide turns. Craig Packer of the University of Minnesota, who ran the Serengeti Lion Project from 1978 to 2015, documented decades of these reversals: a single male without his coalition, an old female cut off from her pride, a wounded sub-adult — all genuinely vulnerable to a coordinated clan. Hyenas don’t just kill these lions. They eat them.

Other lions are arguably the deadliest predator of lions, full stop. Roughly a quarter of cub deaths in some populations come from incoming males committing infanticide after taking over a pride. Coalition wars between adult males regularly end with one dead. If “predator” includes “kills and consumes the rival’s offspring,” then the lion’s worst enemy already wears its own face.

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What Animal Can Kill a Lion in Self-Defense?

Most of the famous “lion killers” sit here. They aren’t hunting lions — they’re surviving them.

Cape buffalo kill more lions than any other large mammal. Up to 1,800 pounds, armed with a fused boss of horn across the skull, operating in herds that mob predators on cue — buffalo turn lion hunts into routine fatalities for the pride. South African National Parks rangers describe buffalo treeing entire prides for hours after a kill, and the species earns its “Black Death” nickname by killing roughly 200 people a year, more than lion, leopard, elephant, and rhino combined.

African elephants kill lions rarely but decisively. A defensive matriarch protecting a calf will trample, gore, or simply lift and throw an adult lion. In Botswana’s Chobe, prides have learned to abandon any hunt the moment elephants enter the area. The cost of a single mistake is too high.

The black rhino and the hippo round out the heavyweights. A rhino horn slipped under the ribs ends the matter in seconds; a hippo’s bite — measured above 1,800 psi — can shear a lioness in two. Lions almost never test either. The interesting exception is the giraffe, whose downward kick lands with enough force to cave in a lion’s skull, which is exactly why prides almost always take giraffes from behind, and almost always go for the legs first.

The Quiet Killers

This is where the list gets strange. And honest.

A porcupine kills lions. Not often, but reliably enough to fill a peer-reviewed paper. The 2019 study by Julian Kerbis Peterhans of Chicago’s Field Museum and colleagues, “Lion-porcupine interactions in Africa,” went through museum specimens, news reports, and field accounts going back to the 1600s. It found about 50 documented cases of lions injured or killed by porcupine quills — and identified at least five wounded lions that subsequently turned to attacking humans because they could no longer hunt fast prey. Kerbis Peterhans called the pattern a “young foolish male syndrome”: sub-adult males, kicked out of their natal pride and not yet skilled hunters, attacking the wrong target out of desperation.

What kills the lion in the end isn’t the quill itself. It’s the wound that festers, the infection that spreads, the abscess that stops the lion from eating.

Black mambas kill lions too, though far more rarely. A defensive strike from a fourteen-foot snake delivers enough neurotoxin to drop a lion in under an hour. The deaths almost always go uncounted because no one is there to find the body.

And then there is infection on its own. Septic wounds from a buffalo gore, a porcupine quill that migrated into a lung, a tooth abscess that stopped a male from eating — these are the actual cause of death on most necropsied wild lions. The animal was killed by another animal. The other animal just took its time.

Who Kills a Lion — A Quick Comparison

What About Tigers, Honey Badgers, and the Viral Matchups?

Two animals come up in every internet thread about what can kill a lion, and both deserve straight answers.

The tiger is bigger, heavier, and a more powerful solo fighter than a lion. The Roman games at the Colosseum pitted the two against each other, and surviving accounts — along with twentieth-century zoo incidents in India — suggest the tiger usually won the one-on-one. But the species haven’t shared a wild range in tens of thousands of years. “A tiger could kill a lion” is true. “A tiger does kill lions” is not.

So is the honey badger the giant-killer the memes claim? Almost. It’s genuinely the toughest small mammal in Africa — Guinness once listed it as the world’s most fearless animal — with skin loose enough to twist inside its own hide and bite back, plus venom resistance that lets it shrug off a puff adder. There’s good footage of badgers chasing lions off a kill. There is no credible record of a honey badger actually killing a lion. The badger wins the standoff. The lion just decides the meal isn’t worth the trouble.

Why Most Lions Actually Die

Here’s the part the viral lists usually skip. In a 2026 wild lion population of roughly 23,000 animals — the IUCN’s current best estimate — the predator that ends most lives isn’t on any of the lists above. It’s us. Around 600 lions die each year to humans through trophy hunting in legal concessions, retaliatory killings after livestock losses, wire snares set for bushmeat, and poisoning. That single figure outpaces every other cause of adult lion death combined.

The numbers underneath are just as telling. The “young foolish male syndrome” Kerbis Peterhans named for porcupine cases applies more broadly. Nomadic sub-adult males, evicted from their natal pride at two or three years old, run a brutal gauntlet of buffalo horns, hyena clans, rival coalitions, and infection before they ever hold territory of their own. Most don’t.

So the honest answer to what animal can kill a lion is, statistically, “another young male lion, and then a person.” (For the fuller picture of the collapse driving that second number, see our piece on why lions are vanishing across Africa.)

Frequently Asked Questions

Q: Can a single hyena kill a lion?

A: Almost never. A lone hyena is no match for a healthy lion. It takes a clan — typically four-to-one odds or better — and usually a lion that is injured, alone, or very old.

Q: What is the only animal that regularly eats lions?

A: The Nile crocodile, in riverine and lakeside habitat. Lions caught drinking, crossing, or fishing are pulled under and drowned. No other non-human predator preys on adult lions with any regularity.

Q: Can a buffalo really kill a lion?

A: Yes, frequently. The Cape buffalo is the largest single cause of lion mortality during hunts. Pride lions die on buffalo horns every year, and entire prides have been treed and held for hours by an angry herd.

Q: What’s the smallest animal that can kill a lion?

A: The porcupine, if you mean documented kills, and the black mamba, if you mean a single fatal strike. Both work the same way: a small wound a lion can’t survive in the wild.

Sources

• Kerbis Peterhans, J.C. et al. (2019). “Lion-porcupine interactions in Africa, including impacts on lion predatory behavior.” Journal of East African Natural History.
• Craig Packer and the Serengeti Lion Project, University of Minnesota Lion Center (1978–2015).
• IUCN Red List, Panthera leo population assessment.
• Discover Wildlife (Leoma Williams, University of Manchester), reporting on lion mortality.
• South African National Parks, Kruger field reports on buffalo–lion interactions.

The lion’s crown is real. So is the short, strange list of animals that can take it from him — and almost all of them never wanted it in the first place.

Illustrations are AI-generated. Article fact-checked and human-edited. Our editorial standards.