Subclass Prototheria

Among mammals, there is the subclass Prototheria. Animals of this subclass are found in Australia and New Guinea, and the platypus is one of its representatives.

Zaglossus attenboroughi: name that honors the naturalist David Attenborough.
Among mammals, there is a Subclass called Prototheria, which houses only one Order: the Monotremata. Its only known representatives belong to the Ornithorhynchidae Family, with a single species: Ornithorhynchus anatinus – the platypus; and the Tachyglossida Family, with four species of echidnas: Tachyglossus aculeatus , Zaglossus attenboroughi , Zaglossus bartoni and Zaglossus bruinjiSuch individuals, endowed with hair and mammary glands, lay eggs, that is, they are oviparous.. All these animals are found only in Oceania, in Australian territory, and in New Guinea. In addition, they do not have an anus, with only one opening for reproduction and also for the elimination of feces and nitrogenous waste: the cloaca. They do not have teeth when adults, nor teats or nipples, being the milk expelled by the glands and licked by the young. They will have assistance from at least one of the parents during a certain period of their lives, that is: these animals develop parental care. , let’s get to know some characteristics of echidnas. These individuals are endowed with thorns that vary in color from yellow to brown, and fur on the belly. With a size that can reach up to one meter, they can weigh up to ten kilograms.

However, unlike what happens in reptiles and birds, the egg remains for a certain time inside the mother’s body, from where it takes and receives nutrients.

They live in a terrestrial environment, sheltering in underground tunnels during the day, made by themselves, with the help of their cylindrical snouts and quite rigid nails.

As we have already provided information about the platypus

Nocturnal, they feed on ants, termites, worms and earthworms, with the help of their large and sticky tongues. At each pregnancy, they give rise to only one offspring, which live attached to the mother until the birth of their spines, being breastfed until seven months of age. 

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