they are warm blooded
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.
Scientists distinguish mammal fossils by their teeth and jawbones. These structures are completely unique to mammals. ChaCha!
Mammals, a branch of vertebrates, possess hair and mammary glands. No other vertebrates do.
Elks are vertebrates. An invertebrate has no backbone like a snail.
Yes. Echidnas are vertebrates. They are mammals, and all mammals are vertebrates.
All mammals are vertebrates because they have a spine and spinal cord, and an internal skeleton. They belong to the Phylum Chordata. Mammals, birds, fish, reptiles and amphibians are all vertebrates.
Wildebeests are mammals and, like all mammals, are vertebrates
Yes. Wallabies are mammals, and all mammals are vertebrates.
Hair and milk.
Bird and mammals are the only two groups of vertebrates which are warm blooded. Amphibians, reptiles and fish, the other vertebrate groups, are all cold-blooded.
Mammary (milk-producing) glands are the primary distinction between mammals and other animals.
All mammals are vertebrates. The two main sections of the animal kingdom are invertebrates and vertebrates- and mammals fall into the vertebrates section!!