Around 6,640 extant species of mammals have been described and divided into 27 orders. [2] The study of mammals is called mammalogy. The largest orders of mammals, by number of …

Nov 24, 2025 · Every major habitat has been exploited by mammals that swim, fly, run, burrow, glide, or climb. There are more than 5,500 species of living mammals, arranged in about 125 …

Oct 6, 2022 · Types of animals that are mammals include warm-blooded vertebrates that have hair or fur and whose babies drink milk. Unlike other animal types like birds and insects, all …

Nov 22, 2023 · Learn about mammals. Discover their characteristics, get examples, and learn about different orders of mammals.

Feb 17, 2025 · What are mammals with examples. Where do they live. Learn about their classification, evolution, lifespan, reproduction, and adaptations with images.

Mammals are among the most adaptable animals on the planet. They are found on every continent and in every ocean, and range in size from tiny bumblebee bats to enormous blue …

Apr 23, 2025 · Mammals are characterized by several distinctive features, including a four-chambered heart, a highly developed brain, three middle ear bones, and a specialized …

Mammals are warm-blooded vertebrates with sweat glands, hair, three middle ear bones and a neocortex region in the brain. Their gradual evolution from mammal-like “reptiles” called …

Explore facts and photos about mammals found in the United States. Learn about their range, habitat, diet, life history, and more.

Welcome to the incredibly diverse world of mammals. This group includes humans and all other hairy warm-blooded vertebrates. Their brains are better developed than other types of …