The Largest Kangaroo Ever Caught in Australia

There’s just something about the wild species found in the Land Down Under: they seem to be weirder, deadlier, and more unique than their brethren on the other six continents. Although kangaroos (aren’t especially deadly animals, they are wild creatures that can be aggressively territorial. Growing up to 200 pounds and equipped with amazingly strong legs, they can also be quite formidable. Yet none were so formidable as Roger, the largest verified kangaroo ever caught in Australia.

The Typical Kangaroo

Macropodidae is the family encompassing all species of kangaroo. Members of this family have large hind legs and feet, plus long, muscled tails. The word “macropod” comes from the Greek for “large foot.” It is an appropriate moniker, considering adult kangaroos move by jumping. Each bounce can measure up to 30 feet in length and 10 feet in height. Kangaroos can move surprisingly quickly at speeds of up to 40 miles per hour in short bursts.

Depending on the particular species of kangaroo, which include the red, eastern gray, western gray, and antilopine kangaroos, an individual adult male will typically grow to a final size of 3 to 6 feet in length and weigh anywhere from 40 to 200 pounds.

The Largest Kangaroo Species

Kangaroos are the largest marsupials in the world. Marsupials typically give birth to young that are not fully developed. Their offspring finish developing in their mother’s pouch, which is called a marsupium. The red kangaroo (Osphranter rufus) is the largest kangaroo species, growing up to 6 feet in height and weighing up to around 200 pounds.

Approximately half of a kangaroo’s body mass is muscle. When you look at a truly “buff” male kangaroo, you can’t help but notice their big, muscular, veined haunches. Then there are those fat, powerful tails, upon which they can balance their whole weight, even while kicking with all their might. Some truly well-developed specimens of adult male red kangaroos have what you might call a six-pack: a rippling, segmented abdomen. They also possess powerful pectoral muscles, which, like weightlifting champions, they flex to intimidate and attract. Red kangaroos that are ready to rumble will even pound their chests, as confrontational as any UFC contender.

The Largest Kangaroo Ever Caught in Australia

Although some sources suggest the largest kangaroo ever was nearly 7 feet tall and 201 pounds, this information has not been scientifically verified. However, Roger “the ripped kangaroo” was a viral sensation, well-known for his impressive physique. Roger stood 6 feet 7 inches tall and weighed 200 pounds, making him one of the largest, if not the largest, verified kangaroos ever recorded.

Roger the kangaroo was rescued as a joey in 2006, after his mother was hit by a car. He was taken to the Kangaroo Sanctuary in Alice Springs, Northern Territory, where he lived until his death in 2018. Roger was the alpha male for many years until he “retired” in 2017. Roger’s son Monty took over the alpha role after a short kickboxing bout with his dad.

How Do Red Kangaroos Get So Large?

It’s hard to believe kangaroos can build muscle on a vegetarian diet. Kangaroos do not hunt, instead opting for a herbivorous diet of grasses, flowering plants, roots, shrubs, and fruits. Red kangaroos are well-adapted to the hot, harsh conditions of life in Australia. They can survive for many days without water, getting sufficient hydration from the plant matter they ingest. They have teeth especially evolved to grind down even the stiffest vegetable matter, extracting every last available morsel of energy, liquid, and nutrition.

Red kangaroos live in groups known as mobs. A mob can consist of just a few kangaroos or more than 100. Most of the mob will be mother kangaroos and their young, with only a handful of males siring joeys with multiple females. Competition for mates is therefore an inherent part of the male kangaroo social structure. This means that the largest males are rewarded with the most mates, making size a successful Darwinian trait among male kangaroos over time.

Are Kangaroos Threatened?

Kangaroos are not considered endangered, with major species such as the red, eastern grey, and western grey kangaroos currently listed by the IUCN as Least Concern. However, they do face threats, mostly from human activities. They occasionally get hit by cars, displaced by new development, or are forced to compete with livestock for vegetable matter to graze. Kangaroos have also historically been hunted for meat and hides. This still occurs in Australia under strict regulation, with culling and commercial harvesting managed through quotas and humane standards set by state and federal authorities.