key point:
- The largest deer ever recorded, the Irish elk, was a huge herbivore with massive antlers, reaching about 7 feet tall and weighing about 1,500 pounds.
- Lions are big cats that can weigh up to 550 pounds and stand up to 4 feet tall at the shoulder, hunting their prey by ambush or by sketchy hunting.
- Despite its size, the largest deer ever recorded was not a slow-moving animal. In fact, researchers believe it can reach speeds of up to 50 mph.
- The winner of a fight between a lion and an Irish elk will be a lion.
Lions are one of the deadliest mammals on Earth today. While they’re fairly effective at killing creatures within their range, it’s always fun to wonder how they’ll fare against animals of the past. For example, will the largest ever battle between a deer and a lion favor the Irish elk or the king of the jungle?
That’s the question we want to answer for you. We’ll compare each animal to the other to determine which of them has the power and skill to take out the other!

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Compare the largest deer and lions ever
biggest deer ever | lion | |
---|---|---|
size | Weight: Approximately 1,500 lbs Height: Nearly 7 feet tall at the shoulders Length: From 9 feet to 10 feet 6 inches | Weight: 260 to 550 lbs or slightly heavier Height: 3 to 4 feet at the withers Length: Between 4.7 and 8.2 feet |
speed | – Possibly top speed of 50 mph | – 35 mph top speed – Up to 40 to 50 mph when trying to bring down prey |
defense | – The elk’s large size makes it difficult to attack and take down – Running speed helps the creature dodge attacks – Have enough stamina to run for miles without a break, even if not at full speed | – Lions usually live in a pride that protects them from outsiders – Lion’s speed helps it run past hyenas and other lions – Lions are feared by many creatures due to their imposing size |
offensive ability | – Large antler racks up to 12 feet wide for knocking down prey – Palm antlers are not very effective at impaling animals – Can stomp or kick predators while fleeing | – Lions have a bite force between 650 and 1,000 PSI, allowing them to inflict fatal bites on the neck and back of their enemies – Their fangs measure between 2.5 and almost 4 inches – Their razor-sharp claws are 1.5 inches long and can be used to deeply cut prey – Can use raw power to hit prey |
predatory behavior | – Herbivores that lack predation behavior | – Top predators – Often hunts in packs – Ambush tactics or even rough hunting can be used alone |
What’s the main difference between the largest deer that ever lived and a lion?
The most striking differences between the largest ever deer and lions are their size and methods of predation. The largest deer ever lived was a huge herbivore with a row of huge antlers, standing nearly 7 feet tall and weighing about 1,500 pounds, while lions were big cats, weighing up to 550 pounds and reaching shoulder height 4 feet, and can hunt prey through ambush or sketchy predation.
These differences will be an important litmus test in this fight. If it’s a small animal, the fight is clearly in the lion’s favor. However, the Irish elk is a very large creature, which gives it a chance to successfully fend off potential invaders.

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What was the key factor in the biggest ever deer and lion fight?
The most important factors in this fight are the size and attacking abilities of the two creatures. Much of this battle comes down to the ability of one animal to kill another before it gets injured. However, that’s not the only thing that matters in this fight. For example, we had to evaluate animals based on size, speed, and how each animal reacted to fighting.
We’ll examine five elements of these animals, compare them to other animals, determine who has the upper hand, and then use that data to inform our eventual winner. Let’s start with the size of the animals!
Largest Deer vs. Lion Ever: Size

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The biggest deer ever lived was much bigger than any lion. The creatures are believed to be as tall as 7 feet tall, 10 feet 6 inches long and weigh an incredible 1,500 pounds. Lions are not that big, weighing only 260 to 550 pounds and standing between 3 and 4 feet tall.
Irish elk have a size advantage.
Biggest Deer and Lions Ever: Velocity
Despite its size, the largest deer ever recorded was not a slow-moving animal. In fact, researchers believe it has a top speed of 50 mph. However, lions can usually only run as fast as 35 miles per hour. However, when they are close to their prey, they can reach speeds of 40 to 50 mph. However, this speed is only suitable for short distances.
The two animals are tied for maximum speed, but the Irish elk is faster and lasts longer.
Biggest Deer Ever Versus Lions: Defense
Compared to other predators, lions rely on their size to deter them. However, they also live in packs that help them avoid danger and use their speed to get out of adverse situations. The largest deer that ever lived possessed extraordinary size, speed and stamina to evade predators. Given that they are extinct, the combination of these factors doesn’t always work for them.
Still, Irish elk have an advantage in defense.
Biggest Deer and Lion Ever: Offensive Capabilities

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The largest deer that ever lived wasn’t a weak creature that couldn’t defend itself. Irish elk have huge palm-shaped antlers that can be up to 12 feet in diameter and can weigh over 80 pounds! Assuming they can use them to crush predators. In addition, their powerful legs can deliver a fatal blow to their pursuers.
Lions, however, are apex predators bred to defeat large animals. They have a bite force of up to 650 PSI or even 1,000 PSI. Their fangs are between 2.5 and 4 inches long and are powerful enough to bite deeply into an animal’s arteries, veins and windpipes. Also, they can break vertebrae by biting them.
Lions have sharp claws that they use to tear at their prey, and they also have powerful swings that they use to hit animals. Their combined attacks are powerful when used alone, but dangerous when combined with others.
In general, the Lions have an advantage in offensive ability.
Biggest Deer Ever Lived vs Lion: Predatory Behavior
The largest deer that ever lived had no predatory instincts or behaviors. At the same time, lions are powerful top predators in their range. They use two hunting methods. They can ambush a target and manage to take it down in minutes. Lions can also use safari to attack a creature and knock it down after attacking it while chasing it. This both tires out the creature and severely weakens it to reduce the chances of the lion being injured while hunting.
Lions have an advantage in predation behavior.
Who will win in the biggest ever battle between a deer and a lion?

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Lions win battle with biggest deer ever. We have to consider the largest prey a lion can take on its own. In this case, an adult male lion can kill a buffalo on its own. Members of the notorious Mapogo Alliance are known for such feats.
Cape buffalo are much shorter than Irish elk, but they weigh a lot more. Height might seem like an issue, but we can’t ignore the lion’s amazing leaping ability. The battle will start with an ambush or a chase. An Irish elk’s instincts would tell it to run away from an aggressive predator, and that’s probably what it will do.
The lion can catch up to its speed in a short period of time, and when the lion grabs the deer, the fight begins, which can then be over very quickly. A lion can attack the underside of an Irish elk’s head, bite its neck and bring this mighty animal to the ground. The Irish elk is strong, but not strong enough to hold off a 500-pound male lion dangling from its head and piercing its neck with 4-inch fangs.
Irish elk are not fighters. It may use its antlers to fight other deer or show off to females during mating season. Because the big cats are fast, agile and intelligent, the chances of the animal rushing at a lion and killing it are slim. All in all, the lions were well fed.
Next:
- Lion vs. Wolf: Who Will Win in a Battle?
- Lion vs Hyena: Who will win the fight?
- Cave Lions vs. Modern Lions: Who Will Win in a Fight?
- Lion vs Crocodile: Who Will Win in a Fight?
- Epic Battle: Biggest Lion Vs Biggest Tiger Ever

I am broadly interested in how human activities influence the ability of wildlife to persist in the modified environments that we create.
Specifically, my research investigates how the configuration and composition of landscapes influence the movement and population dynamics of forest birds. Both natural and human-derived fragmenting of habitat can influence where birds settle, how they access the resources they need to survive and reproduce, and these factors in turn affect population demographics. Most recently, I have been studying the ability of individuals to move through and utilize forested areas which have been modified through timber harvest as they seek out resources for the breeding and postfledging phases. As well I am working in collaboration with Parks Canada scientists to examine in the influence of high density moose populations on forest bird communities in Gros Morne National Park. Many of my projects are conducted in collaboration or consultation with representatives of industry and government agencies, seeking to improve the management and sustainability of natural resource extraction.