Dinosaur are not mammals. Mammals and dinosaurs evolved from completely different genetic lines. Birds are the closest and only living decedents of dinosaurs (except possibly a few rare species not known to science and only known to local tribal legend such as Mokele-Mbembe but this is not widely believed)
No. The word "dinosaur" means "Terrible Lizard." Scientists now believe that dinosaurs may be more closely related to birds than to modern reptiles, but the fact remains: they were not mammals. There were some mammals around towards the end of the time of the dinosaurs, but they were not dinosaurs.... the largest mammal known to have co-existed with dinosaurs was probably similar in size and general shape to the modern Tasmanian devil, and most were smaller.
There were some animals that are commonly thought of as dinosaurs, but were actually a kind of proto-mammal. These are the synapsids, some of which were more reptilian (pelycosaurs) and some of which were more like mammals (therapsids). (Modern mammals are also synapsids.) One of the more famous extinct synapsids is Dimetrodon, the "sail-backed lizard" that is commonly shown alongside dinosaurs (in actuality, Dimetrodon had been extinct for about 35 million years before the first true dinosaurs evolved).
No. Mammals and dinosaurs came from different lineages of reptile. It would be closer to the truth to say that dinosaurs were partially birds.
No. Egg-laying mammals are monotremes.
The platypus and echidna are recognised as egg-laying mammals. They are monotremes, which are egg-laying mammals.
The platypus and the echidna are egg laying mammals. Egg-laying mammals are known as monotremes.
Egg-laying mammals, known as monotremes, have a cloaca.
Egg-laying mammals are known as "monotremes".
The order Monotremata, or monotremes, are egg-laying mammals.
No. Bats are placental mammals. The only egg-laying mammals are the platypus and the echidna.
There are only 2 egg laying mammals. They are the platypus and the echidna.
Egg laying mammals are classified as monotremes. They belong to the order monotremata.
There are no egg-laying marsupials. There are, however, two types of mammals which are egg-laying, and they are known as monotremes. Platypuses and echidnas are both monotremes, the only known egg-laying mammals.
The order of the egg-laying mammals is Monotremata.The monotremes include just the platypus and the echidna.
Egg laying mammals are monotremes. They belong to the order monotremata. They include the platypus and the echidna.