Mammary (milk-producing) glands are the primary distinction between mammals and other animals.
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.
Elks are vertebrates. An invertebrate has no backbone like a snail.
Yes. Echidnas are vertebrates. They are mammals, and all mammals are vertebrates.
Yes. Wallabies are mammals, and all mammals are vertebrates.
All mammals are vertebrates. This includes platypuses.
All mammals are vertebrates. The two main sections of the animal kingdom are invertebrates and vertebrates- and mammals fall into the vertebrates section!!
Hair and milk.
Wildebeests are mammals and, like all mammals, are vertebrates
Wallaroos are mammals so, like all mammals, they are vertebrates.
All mammals are vertebrates.
Yes. Tasmanian devils are marsupials, which are mammals. All mammals are vertebrates, meaning all mammals have a backbone.
They are vertebrates because they have spines. All dogs are mammals. All mammals are vertebrates.