0
An animal is a mammal if:
1. It has a backbone and skeleton.
2. It is warm-blooded.
3. It has hair.
4. It gives live birth (except for the five monotremes).
5. The females have mammary glands.
A mammal is a marsupial if:
1. It gives live birth to its young prematurely before having the young attach to the nipple until it is developed enough to detach.
2. It has a choriovitelline placenta.
Many marsupials have protective pouches over the nipples into which the young climbs and nurses after being delivered.
What else can I help you with?
What is a main characteristic of a Monotreme?
The main characteristic of a monotreme is that it is an egg-laying mammal, unlike marsupials and placental mammals which give birth to live young.
What are the three main groups of mammals?
Monotremes, marsupials, and placental mammals.
How are marsupials different from other mammals?
A marsupial is a mammal, but it is different to a placental mammal in two main ways.Marsupial young are born very undeveloped, after a short gestation period. Moving purely by instinct, the baby joey (the term for all marsupial young) makes its way to the mother's pouch, where the young joey latches onto a teat, remaining there to continue its growth and development.Many marsupials have the mammary glands enclosed within a protective pouch. Although a mammal with a pouch is always a marsupial, not all marsupials have pouches, for example, the numbat of Western Australia. This is not necessarily a characteristic of marsupials.Marsupials are a kind of mammal. All marsupials are mammals, but not all mammals are marsupials. Marsupials do not have advanced placentas, and have epipubic bones. Epipubic bones are bones which project forwards from the pelvis. In the case of marsupials, these bones support the female's pouch, but there are other mammals which are not marsupials which also have epipubic bones. The excretory and reproductive systems of placental mammals and marsupials are also different.Apart from these characteristics, marsupials have a similar biology to other mammals.
What is the main feature which differentiaties marsupials from other mammals?
marsupials all give birth to under developed young, and usually have some sort of pouch to keep them and feed them until they are fully developed
How many groups of mammals are there there are 4 groups?
There are four main groups of mammals: monotremes, marsupials, placental mammals, and the recently recognized group of egg-laying mammals. Monotremes, like the platypus, lay eggs, while marsupials, such as kangaroos, give birth to underdeveloped young that typically continue developing in a pouch. Placental mammals, which include humans and most other mammals, carry their young in the womb until they are more fully developed. Each group exhibits unique reproductive and developmental traits.
What is the characteristic of mammals .?
The main characteristic of the flying mammals is that they are all species of bats. Bats are the only flying mammal. Some of the characteristics of bats are that they fly almost exclusively at night, they can't walk very well, and they have excellent hearing.
How are marsupials different from other mammals and how are they the same?
A marsupial is a mammal, but it is different to a placental mammal in two main ways.Marsupial young are born very undeveloped, after a short gestation period. Moving purely by instinct, the baby joey (the term for all marsupial young) makes its way to the mother's pouch, where the young joey latches onto a teat, remaining there to continue its growth and development.Many marsupials have the mammary glands enclosed within a protective pouch. Although a mammal with a pouch is always a marsupial, not all marsupials have pouches, for example, the numbat of Western Australia. This is not necessarily a characteristic of marsupials.Marsupials are a kind of mammal. All marsupials are mammals, but not all mammals are marsupials. Marsupials do not have advanced placentas, and have epipubic bones. Epipubic bones are bones which project forwards from the pelvis. In the case of marsupials, these bones support the female's pouch, but there are other mammals which are not marsupials which also have epipubic bones. The excretory and reproductive systems of placental mammals and marsupials are also different.Apart from these characteristics, marsupials have a similar Biology to other mammals.
Which is the difference between the three mammal groups?
The three main groups of mammals are monotremes, marsupials, and placental mammals. Monotremes, like the platypus, lay eggs and produce milk but lack nipples. Marsupials, such as kangaroos, give birth to underdeveloped young that continue to develop in a pouch. In contrast, placental mammals, including humans, have a complex placenta that nourishes the developing fetus during a longer gestation period inside the womb.
Characteristic shared by all mammals?
The main characteristic shared by mammals, and which makes them distinct from other vertebrate groups, is that they suckle their young on mothers' milk. This is the main characteristic mammals share.Also unique to mammals is the fact that they have fur or hair.
When Wild animals are commonly divided into groups with similar characteristics. the two categories used for mammals are what?
Mammals are commonly divided into two main categories: monotremes and therian mammals. Monotremes are egg-laying mammals, such as the platypus and echidna, while therian mammals give birth to live young and are further divided into marsupials (like kangaroos) and eutherians (placental mammals). This classification is based on reproductive strategies and developmental processes.
What Fact about mammals?
Mammals are warm-blooded vertebrates.They have a covering of skin or hair/fur.All mammals suckle their young with mothers' milk.The young of most mammals are born alive, except for monotremes - the platypus and echidna - which lay eggs.There are three main groups of mammals: placental, marsupial and monotreme. Monotremes are the egg-laying mammals. Marsupials are characterised by giving birth to undeveloped young which, in most species, must then develop in a pouch.
What group of mammals has the most members?
There are three main infraclass taxa into which the mammals are divided. These divisions are based on how the young are born. Of the monotremes, the marsupials and the placentals, the placental mammals far outnumber the others.If you meant orders, then Rodentia is the largest, followed by Chiroptera (bats).
