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What three characteristics make mammals different from any other animal?
Wiki User
∙ 14y ago
There are several characteristics that are indicative of mammals, but only two are definitive. It is easier to understand things if you know that there are three types of mammal. Almost all mammals are eutherian, or true mammals. A much smaller group are the marsupials; all but one species of these is found only in Australia and its islands. The remaining group, the monotremes, is limited to that same area.
The relevant characteristics are : -
- Three tiny bones in the ear are absolutely definitive; all mammals have them and no other animals do. The bones are hammer, anvil and stirrup.
- Mammals feed their neonates by milk supplied through the female's skin; this also is definitive. Eutheria have nipples on which the newborns suck. Marsupials and monotremes have a skin patch which the young lick.
- Mammals are hairy. All mammals have hair, although some have only traces. Hair is not definitive - many insects have it. (Look at a honey-bee through a magnifying glass!)
- Almost all mammals give birth to live young, but the three species of monotremes lay eggs. When the egg hatches it is still fed on mother's milk.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agomammals have hair or fur, they give live births, and they have vertebrate. hope i could help.
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How are mammals different to one other?
how do animal differ from onr other
What makes mammals different from the other animal groupes?
Mammals can give birth,where few animals cant
Is a mammal an animal?
Yes a mammal is a kind of animal with hair and gives birth to live young.
Is a mammal a girl?
Mammals are boys and girls. Mammals are classified based on certain characteristics they have. Some characteristics mammals have are: 1. They have to have at least some hair on their body. 2. The females have to have nipples that they feed their young milk with. 3. And, other than monotremes (platypus and possums and other animals), they have to give live birth to their young. So therefore, all humans are mammals. Cats, dogs, hamsters, and all other animals you can think of that have all three characteristics, are mammals.
Do all mammals have hair?
Yes. Mammals are the only animal group that can have hair. Invertebrates such as certain species of spiders and insects have hair-like structures called setae, not hair. The two are quite different. Hair/fur is one of the defining characteristics of mammals.
Do lions eat the same as any other animal?
No, every animal eats different things, Lions will eat antelope and zebras while an ocelot will eat small amphibians and mammals
How are birds and mammals different?
They are different that mammals are one animal and birds are another animal.AlsoBirds have feathersWings so they can flyThey have beaksHow big is there backboneHow can they walkBirds lay eggsThey also don't produce live baby's or have you know what. They fertilise them when the eggs are out1. heterophils2. Neutrophils3. Thrombocytes4. segments of thrombocytes e.i. platelets5. nucleated mature6. segmented basophils
Are whales classified as fish?
No, whales are not classified as fish. They are mammals and belong to the group called cetaceans. Fish and mammals are different in terms of their anatomy, reproduction, and other characteristics.
What is biological classification of organisms based on?
Biological classification of organisms is based on their similarities and differences in characteristics such as genetic makeup, anatomy, and behavior. Organisms are grouped into different categories, such as kingdom, phylum, class, order, family, genus, and species, based on these characteristics. The goal of classification is to organize and understand the diversity of life on Earth.
Which characteristics work well in a dichotomous key?
The features have to be easily recognized and not changable. The question "Does the animal have fur?" can help sort between mammals and other animals.
Is it true that platypuses are different from other mammals babies because they share nothing?
Platypuses and echidnas are different from other mammals because they are monotremes, i.e. mammals which lay eggs.
What characteristics is common in all vertebrates?
There are many such features, including: 1. Mammals nourish their young with milk. 2. Mammals are warm-blooded. 3. Mammals have fur. 4. Mammals have a four-chambered heart. 5. Mammals are amniotes. 6. Mammals breathe oxygen. 7. Mammals have three middle ear bones and a neocortex. 8. Mammals have internal reproduction. Some of these characteristics are unique to mammals; others are found in some other vertebrates but not in all other vertebrates.
