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Kangaroo joey inside the pouch Female eastern grey kangaroo with mature joey in pouch. The pouch is a distinguishing feature of female marsupials and monotremes, [1] [2] [3] and rarely in males as well, such as in the yapok [4] and the extinct thylacine. The name marsupial is derived from the Latin marsupium, meaning "pouch".
A male red kangaroo Red kangaroos, Liverpool Plains, Sydney, c. 1819. Kangaroos are marsupials from the family Macropodidae (macropods, meaning "large foot"). In common use the term is used to describe the largest species from this family, the red kangaroo, as well as the antilopine kangaroo, eastern grey kangaroo, and western grey kangaroo. [1]
Marsupials range in size from a few grams in the long-tailed planigale, [1] to several tonnes in the extinct Diprotodon. [2] The word marsupial comes from marsupium, the technical term for the abdominal pouch.
The eastern grey kangaroo is the second largest and heaviest living marsupial and native land mammal in Australia. An adult male will commonly weigh around 50 to 66 kg (110 to 146 lb) whereas females commonly weigh around 17 to 40 kg (37 to 88 lb).
Because it is a marsupial instead of a placental mammal, a kangaroo actually gives birth to an extremely undeveloped embryo after only a month of gestation. This embryo is only an inch long.
The second baby of a tree-dwelling kangaroo made its public debut this week in New York, poking its pink head head out of its mom's furry white pouch. The tiny Matschie’s tree kangaroo, or ...
Gestation lasts 44 days and joeys of captive bred individuals leave the pouch after 11 months. The average life span of the Matschie's tree-kangaroo in the wild is unknown, but is at least 14 years. The life span of the kangaroo in a zoo is about 20 years. The most distinctive trait of all tree-kangaroos is the hair whorl they possess.
Thylacoleo ("pouch lion") is an extinct genus of carnivorous marsupials that lived in Australia from the late Pliocene to the Late Pleistocene (until around 40,000 years ago), often known as marsupial lions. They were the largest and last members of the family Thylacoleonidae, occupying the position of apex predator within Australian ecosystems.