Please note: This is a companion version & not the original book.Sample Book Insights:#1 The Alaskan horses are close to the size of ponies, and their coats are shaggy and dun. They are the truest inhabitants of the arid north, and they remain no matter the conditions. Their life expectancy is 15 years.#2 The American lion, the largest of the three, is descended from ancestors that moved across from Eurasia about 340,000 years ago. The African lion is the daintiest. They are both large cats, and they hunt the same prey: horses and caribou.#3 Ecosystems are built piecemeal. The aggregations of species that produce a sense of place also provide a sense of time. A community is a temporary association of living things that depends on evolutionary history, climate, geography, and chance.#4 The first Americans were small communities of eastern Beringian humans, who thrived in the low plains of Beringia. As the climate changed, and humans gained an ever-deeper foothold in the continent, many of the native species died out.