
Mammal - Wikipedia
A mammal (from Latin mamma 'breast') [1] is a vertebrate animal of the class Mammalia (/ məˈmeɪli.ə /). Mammals are characterised by the presence of milk -producing mammary …
Mammal | Definition, Characteristics, Classification, Examples,
Dec 22, 2025 · An animal is considered a mammal if it can produce milk. Other features unique to mammals include hair or fur (chemically different from hairlike structures on non-mammals); …
Mammals – Definition, Examples, Characteristics
Nov 22, 2023 · Mammals are warm-blooded, hair-bearing vertebrates that produce milk. Mammals represent a diverse and fascinating class of animals, encompassing a wide range of …
Mammals - Definition, Types, List, Characteristics, and Pictures
Dec 31, 2025 · Mammals are a group of complex warm-blooded animals belonging to the class Mammalia. They are recognized by the presence of mammary glands (which produce milk to …
Mammal Pictures & Facts - National Geographic
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 …
Mammals: Characteristics, Types, Classification, Behaviors, Facts ...
Mar 16, 2025 · An animal is classified as a mammal if it has three key characteristics: it is warm-blooded, has hair or fur at some point in its life, and the females have mammary glands that …
Mammals | Fact file | BBC Earth
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 …
MAMMAL Definition & Meaning - Merriam-Webster
The meaning of MAMMAL is any of a class (Mammalia) of warm-blooded higher vertebrates (such as placentals, marsupials, or monotremes) that nourish their young with milk secreted by …
mammal - Wiktionary, the free dictionary
Dec 15, 2025 · mammal (plural mammals) An animal of the class Mammalia. (zoology) Characterized by being warm-blooded, having hair or fur and producing milk with which to feed …
Mammals | San Diego Zoo Animals & Plants
There are three classes, or main types, of mammals: monotremes, marsupials, and placental mammals. Monotremes are the most primitive mammals, and there are only five species: the …