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Placental mammals live in almost every environment on Earth. They are one of the most successful groups in the animal kingdom. Mammals in general are very successful and the majority of mammals are placentals. This group is so successful because they are endothermic. The only mammals that are not placentals are the marsupials (kangaroo, opossum, etc) and the prototherians (egg laying mammals). Environments that do contain mammals would likely be constrained to those that are very severe: The deep ocean, extremely high mountain peaks, etc. Otherwise you can find these animals almost anywhere.
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What are the three kinds of mammals?
The Monotremes, Marsupials, and the largest group, Placental Mammals.Monotremes are mammals that lay eggs. The only monotremes that are alive today are the spiny anteater, or echidna, and the platypus.Marsupial's young are born in an extremely immature state; most female marsupials have pouches. Some marsupials include the koala, kangaroo, and the numbat.Placental Mammals are the most familiar group (meaning us), but also contains a diverse group of organisms from rats to dogs to horses.
When do placental mammals have their mating season?
Placental mammals typically have their mating season in the fall or winter, with variations depending on species. This timing allows for the birth of offspring in the spring or summer when food availability is typically higher.
Mammals that retain their young within the body of the mother for a long period of time are called?
Mammals that retain their young within the body of the mother for a long period of time are called "viviparous" mammals. This means the young develop inside the mother and are born alive, as opposed to laying eggs like reptiles or some other mammals.
What animal gives birth to young alive has hair and runs?
No. Most mammals give birth to live young, but the exceptions are the three species of monotremes - platypus, short-beaked echidna and long-beaked echidna. All species of bird lay eggs, rather than give birth to live young, and most amphibians, reptiles and fish also lay eggs. Some within each classification do bear live young.
Does a baboon have a pouch for its young?
No, baboons do not have a pouch like some marsupials do. Instead, female baboons carry their young on their body or back until they are old enough to move around independently.
Why do dolphins have bellybuttons?
Dolphins are placental mammals. All placental mammals have bellybuttons of some kind.
Why do cats have bellybuttons?
Cats are placental mammals, and all placental mammals have bellybuttons of some sort.
Do ponies have belly buttons?
Ponies, like all horses are placental mammals. ANd all placental mammals have bellybuttons of some sort.
Are anteaters placental?
Yes. Anteaters are placental mammals because they do not have a pouch like most marsupials, and they do not lay eggs like the monotremes. The echidna, which is sometimes called the "spiny anteater", is not a true anteater. It is a monotreme, or egg-laying mammal.
Where do placental mammals live?
Placental mammals are mammals that give birth to fully developed live young, such as like humans, for instance. They are classed within the group of animals known as eutherians. Dogs, cats, livestock, rodents, giraffes, rhinoceroses, etc, are all placental mammals. This is opposed to the monotremes, which are egg-laying mammals (platypuses and echidnas) or marsupials (kangaroos, koalas, wombats, etc), which give birth to very undeveloped young that must complete their development attached to a nutrient-supplying teat, usually in the mother's pouch.
What other subclasses are there for mammals?
Some other subclasses of mammals include monotremes, which are egg-laying mammals like the platypus and echidna, as well as marsupials, which carry their young in a pouch, like kangaroos and koalas. Additionally, there are also eutherians, which are placental mammals that nourish their young through a placenta, such as humans, dogs, and elephants.
Do mammals live in the desert?
Yes. Some mammals live in deserts.
Is a shark a placental mammal?
Yes, some sharks do have their young in this way, it is called viviparity. Some sharks maintain a placental link to the developing young which is similar to mammalian gestation. The young are born alive and fully functional. The hammerheads, the bull and the blue sharks are viviparous.
Is the little penguin a mammal?
No, a penguin is a flightless bird, while a marsupial is a mammal which rears its young in a pouch. Some penguins (such as the Emperor Penguin) have a skin flap which they incubate their egg in to stop it freezing but this doesn't make them mammals!
What are the three kinds of mammals?
The Monotremes, Marsupials, and the largest group, Placental Mammals.Monotremes are mammals that lay eggs. The only monotremes that are alive today are the spiny anteater, or echidna, and the platypus.Marsupial's young are born in an extremely immature state; most female marsupials have pouches. Some marsupials include the koala, kangaroo, and the numbat.Placental Mammals are the most familiar group (meaning us), but also contains a diverse group of organisms from rats to dogs to horses.
Are all animals native to Australia marsupials?
No. Most mammals native to Australia are marsupials.Australia is home to about 90 species of bats, which are of course the only true flying mammals, and they are placental mammals. There are also about ten species of native mouse which are rodents, not marsupials, as well as various marine mammals such as dolphins and dugong. There are also the two monotremes, or egg-laying mammals, which include the echidna and the platypus.Although some placental mammals are native to various New Guinean islands, the placental mammals that are found on Australia, like the Red Fox, were introduced by settlers within the last few centuries. The Dingo is commonly believed to be a native Australian animal, but it is not truly native, having come with the Aborigines when they first arrived.
Why are some mammals adapted to living in water?
Their habitat has forced some mammals to live that way.
