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Platypuses (and echidnas) are monotremes, or egg-laying mammals. Like all mammals, they feed their young on mothers' milk. The defining trait of a mammal is to have mammary glands, to produce milk for its young. The platypus produces its milk from numerous glands over its underside, unlike other mammals which have teats.
Platypuses have just one external opening, the cloaca, for both waste elimination and for reproduction. The cloaca leads to the urinary, faecal and reproductive tracks, all of which join internally, and it is the orifice by which the female monotreme lays her eggs.
As for how platypuses move on land - these animals spend more time on land than in the water. The platypus has four legs. When on land, it walks. When in water, it swims. Its feet have retractable webbing between the toes. This means it can swim effectively, but it can also dig on land because the webbing retracts to expose the sharp claws.
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How are fish and marine mammals different?
Whales move their spines up and down where as fish move their spines side to side.
How do sea mammals move?
Sea mammals have large flippers and the y swim or can propel themselves slowly on land.
What is the collective name for a group of platypuses?
There is no collective name for a group of platypuses. Platypuses are solitary animals and do not live or move in groups.
Does a platypus go to the same location to lay its eggs if so where?
Female platypuses lay their eggs in a burrow. They lay only one set of eggs (one to three eggs) per year in this burrow. They elongate the burrow until it is about 20 meters/66 feet long to lay the eggs in it (it is normally only a few feet long). Does the female platypus lay her eggs in the same burrow every year? Probably not. Platypuses move between burrows very frequently, inhabiting up to three in a single day.
What do platypuses do when they don't have sufficient food and water?
Sometimes, during drought seasons, the water level in a platypus's river or creek will get too low to sustain enough food for the platypus to survive. When this happens, the platypus must move to a new waterway. Platypuses do not move quickly over land, and they can become dehydrated, dying before they reach a new creek or river. Some do survive the move.
Do platypuses move to different places?
yes,Jersey Shore
How does laying eggs with shells allow reptiles to move into new environments?
they can travel over land because they do not need to lay eggs in water
Structural adaptation of mammals to terrestrial habitat?
They traded in there fins for some new legs that allowed them to move around on land.
How do marsupial mammals move?
Most marsupials move on legs just like other mammals.
What is the difference between fish birds and mammals?
Okay, I'm guessing the questioner is young. Mammals are covered with skin and hair, fish are covered with small scales, and birds have skin and feathers. Mammals have live births, whereas fish and birds lay eggs. Mammals and birds are warm blooded and can regulate their own body temperature, whereas fish are cold blooded and regulate to the water around them. Mammals and fish have teeth; birds do not. Birds can fly because their bones are hollow to help them move through the air; fish have gills to help them breathe underwater and mammals are basically land animals, with the exceptions of the whale and dolphin.
Do raccoons lay eggs?
Um... No. Rats are mammals. They lay live young. Only birds and reptiles lay eggs, rats lay young, pink babies.
How did the evolution of an amniotic egg help reptiles?
The amniotic egg allowed early reptiles to move away from waterside habitats and colonize dry regions. It allowed reproduction on land by preventing the embryo from drying out, so eggs could be laid away from the water.
