Warm-blooded Ones live on the land, fly in the air, and swim in the sea. What makes these animals unique is that they have a constant body temperature. This enables them to live in cold, hot, and temperate areas. Warm-blooded Ones also give birth to live young (except for the platypus and echidna, who lay eggs). However, all Warm-blooded Ones nourish their children with milk. Their other defining characteristic is that they have hair; even whales sport one or two hairs.
Of all the animal groups, most people feel the closest to the Warm-blooded Ones. People have a natural kinship with these animals, since as humans, we are fellow mammals. Warm-blooded Ones live invited in people’s homes as companions and members of the family. They are raised by people for food, clothing, and shelter. People have been nourished by their friendship with Warm-blooded Ones for ages.
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