- Red kangaroo
- 2.5 metre(s)
- Australia ()
The largest extant marsupial is the red kangaroo (Macropus rufus) native to Australia, which can reach lengths of around 2.5 metres (8 feet 2 inches) from head to tail and a height of around 1.8 metres (5 feet 11 inches) when standing in the normal position. A fully grown male weighs in the region of 22–85 kilograms (48–187 pounds). Females are slightly smaller, measuring about 2 metres (6 feet 6 inches) long and weighing 17–35 kilograms (37–77 pounds).
As well as being the largest marsupial, the red kangaroo is also Australia's largest mammal.
Larger marsupials, known as diprotodonts, used to live in Australia up until 40,000 years ago. Based on skeletal evidence, it's estimated that an average adult Diprotodon optatum would have been 3 metres (9 feet 10 inches) long and weighed some 2,800 kilograms (6,172 pounds).