What is the maximal age a Eastern grey kangaroo reaches?
An adult Eastern grey kangaroo (Macropus giganteus) usually gets as old as 24 years.
Eastern grey kangaroos are around 36 days in the womb of their mother. When born, they weight 449 grams (0.99 lbs) and measure 1.2 meter (4′ 0″). As a member of the Macropodidae family (genus: Macropus), a Eastern grey kangaroo caries out around 1 little ones per pregnancy, which happens around 1 times a year. Fully grown, they reach a bodylength of 87.7 cm (2′ 11″).
As a reference: Usually, humans get as old as 100 years, with the average being around 75 years. After being carried in the belly of their mother for 280 days (40 weeks), they grow to an average size of 1.65m (5′ 5″) and weight in at 62 kg (137 lbs), which is obviously highly individual.
The eastern grey kangaroo (Macropus giganteus) is a marsupial found in eastern third of Australia, with a population of several million. It is also known as the great grey kangaroo and the forester kangaroo. Although a big eastern grey male typically masses around 66 kg (weight 145 lb.) and stands almost 2 m (6.6 ft.) tall, the scientific name, Macropus giganteus (gigantic large-foot), is misleading: the red kangaroo of the semi-arid inland is larger, weighing up to 90 kg.
Animals of the same family as a Eastern grey kangaroo
Not really brothers and sisters, but from the same biological family (Macropodidae):
- Doria’s tree-kangaroo becoming 8 years old
- Brown’s pademelon with 1 babies per pregnancy
- Tammar wallaby becoming 14 years old
- Swamp wallaby becoming 15 years old
- Parma wallaby becoming 10 years old
- Short-eared rock-wallaby with 1 babies per pregnancy
- Red-legged pademelon with 1 babies per pregnancy
- Spectacled hare-wallaby becoming 6 years old
- Black-striped wallaby becoming 15 years old
- Western brush wallaby with 1 babies per pregnancy
Animals that reach the same age as Eastern grey kangaroo
With an average age of 24 years, Eastern grey kangaroo are in good companionship of the following animals:
- Bharal usually reaching 24 years
- Blue monkey usually reaching 27.08 years
- Southern elephant seal usually reaching 23 years
- White-tailed deer usually reaching 23 years
- Mediterranean monk seal usually reaching 23.67 years
- Indian hog deer usually reaching 20 years
- Barbary macaque usually reaching 22 years
- Risso’s dolphin usually reaching 20 years
- Tamaraw usually reaching 28 years
- Blue wildebeest usually reaching 21.5 years
Animals with the same number of babies Eastern grey kangaroo
The same number of babies at once (1) are born by:
- Long-footed potoroo
- Unstriped ground squirrel
- Nubian ibex
- Nathusius’s pipistrelle
- Northeast African mole-rat
- Peters’s trumpet-eared bat
- Big brown bat
- Siamang
- Gulf Coast kangaroo rat
- Mexican gray squirrel
Weighting as much as Eastern grey kangaroo
A fully grown Eastern grey kangaroo reaches around 33.51 kg (73.87 lbs). So do these animals:
- Finless porpoise weighting 32.5 kilos (71.65 lbs) on average
- Tibetan antelope weighting 32.66 kilos (72 lbs) on average
- Red gazelle weighting 40 kilos (88.18 lbs) on average
- Springbok weighting 33.39 kilos (73.61 lbs) on average
- Blackbuck weighting 36.1 kilos (79.59 lbs) on average
- Thylacine weighting 30 kilos (66.14 lbs) on average
- Galápagos fur seal weighting 39.47 kilos (87.02 lbs) on average
- Red kangaroo weighting 38.98 kilos (85.94 lbs) on average
- Sea otter weighting 27.46 kilos (60.54 lbs) on average
- Red goral weighting 28.68 kilos (63.23 lbs) on average
Animals as big as a Eastern grey kangaroo
Those animals grow as big as a Eastern grey kangaroo:
- Red forest duiker with 78.7 cm (2′ 7″)
- Steenbok with 82.4 cm (2′ 9″)
- Goa (antelope) with 98 cm (3′ 3″)
- Chimpanzee with 79.6 cm (2′ 8″)
- Pacarana with 75 cm (2′ 6″)
- Dorcas gazelle with 96.6 cm (3′ 3″)
- Indian crested porcupine with 75 cm (2′ 6″)
- African golden cat with 79.9 cm (2′ 8″)
- Queen of Sheba’s gazelle with 99.9 cm (3′ 4″)
- Buru babirusa with 95 cm (3′ 2″)