Warm-blooded vertebrates with hair that nourish their young with milk.
Mammary glands, hair or fur, three middle ear bones, a diaphragm, four-chambered heart and endothermy. Groups: monotremes, marsupials and placentals. Teeth are differentiated (incisors, canines, molars).
Mammals give birth to live young (except monotremes), nurse and have a four-chambered heart. Fur insulates. Brains are large relative to body size.
Key idea: mammals are endothermic with parental care.
Warm-blooded vertebrates with hair that nourish their young with milk.
Mammals is one of the 53 topics in Zoology & Animal Diversity. It is rated Beginner, so it suits learners who are starting out in biology. Related topics in this area include Marsupials and Monotremes, Birds, Amphibians.
Bats are the only mammals capable of powered flight.
Mammals is a Beginner topic, so no earlier topic is required. Other Beginner topics in Zoology & Animal Diversity that pair well with it include Animal Kingdom, Vertebrates and Invertebrates, Sponges.
The closest topics to Mammals are Marsupials and Monotremes, Birds, Amphibians, Bird Flight Adaptations. Comparing them side by side is a good way to see how the ideas connect.
Read the summary and the in-depth section, then use the quick check on the interactive lesson for Mammals. To practise the whole of Zoology & Animal Diversity, use the Zoology & Animal Diversity quiz.
Mammals: Warm-blooded vertebrates with hair that nourish their young with milk. Marsupials and Monotremes: Marsupials carry young in a pouch; monotremes like the platypus lay eggs. Read both side by side and note what each one explains.
First, read the summary and write the definition in your own words. Second, read the in-depth section and note any example. Third, compare it with Marsupials and Monotremes and explain the difference aloud. Finally, take the Zoology & Animal Diversity quiz and come back to this page for any question you miss.
Marsupials carry young in a pouch; monotremes like the platypus lay eggs.
🦁 Zoology & Animal DiversityFeathered, warm-blooded vertebrates with wings and lightweight bones, most of which fly.
🦁 Zoology & Animal DiversityVertebrates such as frogs that typically begin life in water and live on land as adults.
🦁 Zoology & Animal DiversityHollow bones, keel, air sacs and feathers combine to deliver lift and efficient respiration.
🦁 Zoology & Animal Diversity