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Long ago, massive animals roamed the earth. During the last Ice Age, even as glaciers encroached on their homes, some of the beasts survived. Examining fossil remains for clues, scientists have learned how these Ice Age Mega Beasts lived in the harsh climate. In language fit for emerging readers, this series looks at predators and prey alike, surveying the diets, habitats, and strengths of each animal, as well as how its species ultimately succumbed to the changing environment. A diagram points out key physical features that enabled each prehistoric beast to survive the Ice Age. Supports the Next Generation Science Standards. An elementary exploration of monster birds, focusing on fossil evidence that helps explain how their wide wings and long feathers helped these beasts adapt to the last Ice Age.