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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".
The dark blue, teal, and gold tapetum lucidum from the eye of a cow Retina of a mongrel dog with strong tapetal reflex. The tapetum lucidum (Latin for 'bright tapestry, coverlet'; / t ə ˈ p iː t əm ˈ l uː s ɪ d əm / tə-PEE-təm LOO-sih-dəm; pl.: tapeta lucida) [1] is a layer of tissue in the eye of many vertebrates and some other animals.
The gestation period for a pregnant female is around 13 days, with a pouch period of 6–7 months. [5] While females have four teats in their pouches and can have up to three young per birth, they rarely suckle more than two. [8] Each young weighs no more than 1 gram at birth, and is held in the mother's well-developed forward-opening pouch.
Marsupials give birth at a very early stage of development; after birth, newborn marsupials crawl up the bodies of their mothers and attach themselves to a teat, which is located on the underside of the mother, either inside a pouch called the marsupium, or open to the environment. Mothers often lick their fur to leave a trail of scent for the ...
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The blue-eyed spotted cuscus can be found on several of the islands in the Cenderawasih Bay in West Papua of Indonesia. This region is made up of the islands Biak, Supiori, and Numfor. Despite being endemic to the islands Biak and Supiori, the blue-eyed spotted cuscus have been spotted on the island of Numfor as pets. [2]
The young are first able to vocalise and open their eyes between 90 and 106 days of age. [5] They leave their mother's pouch at 120–130 days. However, lactation usually continues until 180–220 days after birth but sometimes ends by 145 days. [6] Both sexes become sexually mature in the first mating season after their birth.
The bilby is a marsupial and carries its young in a pouch. Threats include habitat loss, disease, and introduced predators such as foxes. Formerly widespread, bilbies are now restricted to arid parts of northwestern and central Australia. It is commonly called bilby after the lesser bilby (Macrotis leucura) became extinct in