All animals which have a spine, or backbone, are classified in the phylum Chordata. There are three subphylums in Chordata: Urochordata (tunicates), Cephalachordata (lancelets), and Vertebrata (vertebrates). The platypus is a vertebrate. This phylum also includes all animals which have a hollow nerve cord and a notochord at some stage during their development. In the case of vertebrates, the notochord is present in the embryo, and develops into the vertebral body.
It can't. The platypus is a mammal. It is a monotreme, but that is a sub-classification within mammals.
The platypus has a body covered by hair, it is warm-blooded, it has a four-chambered heart, it suckles its young - all characteristics of mammals.
The mammal group to which the platypus belong is monotremata.There are only two animals in that group: the platypus and the echidna, and they are known as monotremes.
The platypus is in the mammal classification. It is a monotreme, or egg-laying mammal.
The platypus is a mammal, specifically a monotreme.
The platypus is classified as a mammal. It has all the defining characteristics of a mammal, including the ability to nurture its young on mothers' milk. It is a monotreme, of the order monotremata, meaning it is an egg-laying mammal.
The mammal group of egg layers are known as monotremes. The platypus and the echidna are both monotremes.
A platypus is a monotreme, which is an egg-laying mammal.
The platypus is a mammal. It is a member of the group known as monotremes, which consists of egg-laying mammals. It is not a member of any other group.
The platypus is a monotreme mammal.
The platypus is not a reptile - it is an egg-laying mammal.
The platypus is a mammal. Although it lays eggs in a burrow, and hunts for food in the water, it is a warm-blooded mammal that breathes using lungs, not gills. It also feeds its young on mothers' milk, something which no fish does.
Yes, the platypus is a mammal.
No. A platypus is not a placental mammal of any type, but a monotreme, which is an egg-laying mammal.