Monotremes, marsupials, and placental mammals.
The three most common factors among mammals are that they all breathe air, have red oxygenated blood, and all feed and protect their young.
The three types of mammals are:Placental mammals, or Eutherians. This is the largest group of mammals.Marsupials (often referred to as the "pouched mammals")Monotremes, or egg-laying mammals
Three herbivors that are not mammals are snails, aphids, and moths.
no they do not. Mammals are divided into three groups; monotremes, marsupials, and placental mammals.
Mammals are warm-blooded vertebrates.They have a covering of skin or hair/fur.All mammals suckle their young with mothers' milk.The young of most mammals are born alive, except for monotremes - the platypus and echidna - which lay eggs.There are three main groups of mammals: placental, marsupial and monotreme. Monotremes are the egg-laying mammals. Marsupials are characterised by giving birth to undeveloped young which, in most species, must then develop in a pouch.
Small mammals
Elephants, Whales, Bears
No. Humans are mammals too, and our hearts are 4 chambered.
There are hundreds of mammals in Africa. Three of the most common and diverse are the common rat, the zebra and the duiker, a small antelope.
No. Marsupials are just one of three groups of mammals. The other two are monotremes and placental mammals. The vast majority of modern mammals are placental.
The three main groups of mammals are monotremes, marsupials, and placental mammals. Monotremes, like the platypus, lay eggs and produce milk but lack nipples. Marsupials, such as kangaroos, give birth to underdeveloped young that continue to develop in a pouch. In contrast, placental mammals, including humans, have a complex placenta that nourishes the developing fetus during a longer gestation period inside the womb.