A platypus IS a mammal. The only difference is that platypuses are egg-laying mammals, or monotremes. In every other sense, they are completely mammals.
Koalas and platypuses do not socialise with each other. They live in different areas, in different layers of the bush, and eat different foods.
they mate with each other or sleep with each other
Dolphins are mammals. Sharks are fish. They are very different, though both are vertebrates.
No. Platypuses are mammals, not amphibians. No mammals undergo metamorphosis. Baby platypuses are hatched from eggs, and as the creatures grow, they gradually resemble their parents more and more.
The kangaroo is not a placental mammal. It is a marsupial. Marsupials and placental mammals are different from each other.
It is not known how many platypuses are killed each year, but it is not as many as there used to be. Platypuses are no longer hunted for their pelts, and fewer of them are drowned in fishing nets as laws have come into effect to help protect them more. Floodwaters kill platypuses - they are mammals, and must breathe air, and young or weak platypuses can quickly drown in fast-moving floodwaters.
There are three groups of mammals, and all of them are suckled on mothers' milk. Feeds their young with milk is the one of the defining characteristics of mammals. No other anal group does this. Marsupials, monotremes and placentals are the the types of mammals. Each of these groups of mammals give milk to their young, but monotremes (platypuses and echidnas) produce milk through other glands, not from the teat.
Platypuses and echidnas are each distinct species. They do not "break apart".
mammals and primates. mammals and primates are kinda diff, but they're so close to each other.
They are warm blooded.
Pandas and platypuses are both mammals, and they share some characteristics, even though pandas are placental mammals and platypuses are monotremes, or egg-laying mammals. As mammals, they have in common the following:They nurture their young on mothers' milkThey are warm-blooded vertebratesThey have fur/hairThey breathe using lungs (not gills or spiracles)They have a flexible neck with seven cervical vertebraeSound is produced by the larynx (a modified region of the trachea)Limbs are oriented verticallyThe mammalian heart has 4 chambersInternal temperature is generally high
Not really. Platypuses are essentially solitary animals, living and swimming alone. Young platypuses swim with their mothers while they are learning to hunt, but this is only for a few months. In addition, the territory of several platypuses along a riverbank will overlap, so a few platypuses may interact with each other while swimming.