noun
- a warm-blooded animal that feeds milk to its young and usually has hair or fur
Usage: biology
Examples
- Whales are the largest mammals on Earth.
- Most mammals give birth to live young rather than laying eggs.
- Dogs, cats, and humans are all mammals.
- Mammals are found in nearly every habitat on the planet.
- The platypus is an unusual mammal that lays eggs.
- Marine mammals like dolphins must surface to breathe air.