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Marsupials are a diverse group of mammals belonging to the infraclass Marsupialia.They are natively found in Australasia, Wallacea, and the Americas.One of marsupials' unique features is their reproductive strategy: the young are born in a relatively undeveloped state and then nurtured within a pouch on their mother's abdomen.
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". This is due to the occurrence of epipubic bones, a pair of bones projecting forward from the pelvis.
They have one opening for excretion and reproduction called the cloaca. They hold the eggs internally for several weeks, providing nutrients, and then lay them and cover them like birds . Like marsupial " joeys ", monotreme " puggles " are larval and fetus-like, [ 9 ] as like them they cannot expand their torso due to the presence of epipubic ...
A boa constrictor in the U.K. gave birth to 14 babies — without a mate. The process is called parthenogenesis, from the Greek words for “virgin” and “birth.” It tends to occur in ...
Like several other marsupials, they do not have a pouch, and it appears that females do not carry the young constantly, possibly leaving them in the burrow. [ 4 ] Largely because of their rugged, inaccessible habitat, they are very poorly known and have traditionally been considered rare.
Featured Hurricanes Jova and Otis, two of the fastest intensifying Pacific hurricanes on record. Otis was also the first Pacific hurricane to make landfall at Category 5 intensity. Tied with 1992 for the most named storms in October. Second season on record (after 1997) to have two named storms get retired in the same year (Dora and Otis). 2024 ...
Cyclone vs. hurricane vs. typhoon: These are all terms used to name the same type of tropical storms, it just depends what ocean the storm is in. In the Atlantic and Eastern Pacific Ocean, a storm ...
[29] [30] Other taxa that may have dispersed by the same route (if not by flying or oceanic dispersal) are parrots, chelid turtles, and the extinct meiolaniid turtles. Marsupials remaining in South America included didelphimorphs , paucituberculatans (shrew opossums) and microbiotheres (monitos del monte