The book also introduces readers to prehistoric mustelids, a family of carnivores that includes weasels, badgers and wolverines. These ancient mammals were far larger than their modern relatives.
It includes profiles and illustrations of prehistoric mammals such as Livyatan melvillei, a large predatory whale from the Miocene epoch. After the extinction of dinosaurs came the age of mammals.
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In a grove of acacia trees a group of giraffes, members of a family of mammals that until 20 million years ago were small forest dwellers, nibble at the top branches. A few miles away elephants ...