What are mammiferes?

Mammifers, commonly known as mammals, are a class of warm-blooded vertebrates characterized by the presence of mammary glands that produce milk for feeding their young. They typically have fur or hair covering their bodies, and most give live birth, with the exception of monotremes like the platypus that lay eggs. Mammals are highly diverse, ranging from small rodents to large whales, and they inhabit various environments across the globe. They are known for their complex behaviors, advanced brain development, and social structures.