Kangaroos are Australia’s most iconic animals — and some of the funniest. A big male can clear a fence in a single bound, a newborn baby kangaroo is about the size of a grape, and the whole group stops to box like tiny professional wrestlers. These fascinating facts cover how they jump, what they eat, how joeys grow and why they matter. To meet the sleepy cousin of the kangaroo, see our koala facts guide.
What Is a Kangaroo?
Kangaroos are the largest marsupials on Earth. Kangaroos belong to the family Macropus — literally ‘big foot’ — and their large feet and powerful hind legs are built for hopping at speed. A big red male stands taller than an adult human, while the females are smaller and swifter. Thanks to their large feet, they can travel more than 30 miles an hour and cover 8m in one leap.
How High Can a Kangaroo Jump?
Very. Kangaroos use their springy legs to leap around 1.5 metres high in everyday hopping — but a fleeing male can reach nearly 3 metres and sail over a 2.5-metre fence without slowing down. Kangaroos pound the ground with their strong feet, and their tendons act like elastic bands, storing energy with every hop so long journeys cost surprisingly little effort.
What Do Kangaroos Eat?
They eat grass and low shrubs — they are strict grazers that rarely stray far from good pasture. They regurgitate their food and chew it again, much like a cow, squeezing every drop of nutrition from tough dry grass. In drought, they survive by travelling long distances at night between feeding areas.
What Do You Call a Group of Kangaroos?
A gathering of these animals is called a mob. They live in small groups called troops or herds, usually led by the biggest male, who watches over the females in his mob. The loose social structure keeps everyone alert: one pair of eyes spots a threat and the whole group bolts together.
Species of Kangaroo
Think they are all the same? The four best-known species are:
- Red kangaroo — the giant of the arid inland
- Eastern grey — the common hopper of fertile eastern Australia
- Western grey — the smelly-coated cousin of the south
- Antilopine kangaroo — the sleek tropical northerner
Close relatives like the wallaby are simply smaller versions of the same successful body plan.
Bringing Up Baby
A female typically raises one young at a time, and a newborn joey is astonishing — pink, hairless, blind, and only one inch long. It cannot suckle or swallow, yet it climbs unassisted through its mother’s thick fur to the comfort and safety of the pouch, latching onto a teat that swells in its mouth so it cannot fall off. The mother then uses her muscles to pump milk down its throat.
The little one lives in the mother’s pouch for short trips at first, and is mature enough to leave the pouch for good around eight months. Even after leaving the pouch, the young dive back in for safety and a drink for several more months. And here is the miracle: females can pause a pregnancy — a trick called embryonic diapause — so a replacement is ready the moment an older one moves on. That portable cradle is the secret behind their huge numbers.
Why Do Kangaroos Box?
Those famous fights are real. Males ‘box’ using their small front legs to grapple and their strong feet to kick, mostly to sort out who is boss. A solid kick from a dominant male can knock a rival somersault over backwards. It looks fierce but rarely causes serious injury — mostly pride.
Natural Predators
They are tough but not invincible. Their main hunters today are dingoes and large eagles; historically, the now-extinct thylacine and giant monitor lizards hunted them too. Speed is their main defence, backed by sharp claws on their front paws and a kick from their hind limbs that can disembowel an attacker.
Kangaroos and People
The animal appears on the Australian coat of arms alongside the emu, and it is estimated that there are more of them than humans in Australia. For First Nations peoples, they have been food, tool-leather and story-figure for tens of thousands of years.
Are Kangaroo Numbers in Trouble?
Some species thrive, while others struggle. Quotas and reserves help kangaroos for generations to come.
How Long Do Kangaroos Live?
In the wild, a big male might reach 20+ years, while females often breed well into their teens. Most wild young do not survive their first year.
Can Kangaroos Walk Backwards?
No — their hopping legs make walking impossible, and they can’t move backwards easily, which is one reason they appear with the emu on the coat of arms, both only moving forward. They also swim surprisingly well.
Do Kangaroos Sweat?
They avoid the heat instead: they lick their forearms, where blood runs close to the skin, using saliva evaporation as natural air conditioning.
What Is a Funny Fact About Kangaroos?
A female can be permanently pregnant, with one youngster riding, one suckling, and one paused embryo waiting — she can produce different milk formulas for each.
What Are Some Dark Secrets?
Males will sometimes force a dependent young from its snug home or delay their own fatherhood duties to bring a female back into season — nature in the outback is unsentimental. The young can also face hunger due to vanishing habitat in drought years.
References and Sources
- Wildlife fact file: wildlifesydney.com.au
- National Geographic Kids fact file: natgeokids.com/au