I don't fully understand the question, but from what I gather the two types are birds and mammals. Sorry if this isn't correct. Endothermic means self-regulating body heat by the way.
mammals are the smallest group of vertebrates
The vertebrate group in which humans belong to is the mammal group.Humans belong to the Mammal group.
Vertebrates and non-vertebrates.
They are qualified as invertebrates and belong to the group of arthropods or crustaceans
Vertebrates are animals with back bones. Invertebrates don't.
Gorillas are vertebrates. They belong to the group of animals called mammals, all of which are vertebrates because they have a backbone or spinal column.
vertebrates
what is the vertabrate group of a walrus
Amphibians
Possums belong to the group of vertebrates known as mammals.Specifically, they are marsupials.
birds
mammals