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How do Opossums carry their babies? Biology

By |2018-04-16T08:12:58-07:00May 26th, 2017|Biology|

Opossum The earliest mammals, about 200 million years ago, hatched from eggs and then got milk from their mothers, like the duck-billed platypus. But soon after that, about 125 million years ago, these mammals evolved into mammals that were born alive, but helpless and tiny. These tiny babies then lived in a pouch [...]

Evolution of Horses – Where do horses come from?

By |2017-09-16T22:18:43-07:00May 26th, 2017|Biology, Central Asia|

Eohippus - an early kind of horse When mammals first began to grow larger, after the dinosaurs became extinct about 70 million years ago, some of them evolved into the earliest ancestors of horses. The first horses evolved in North America. They were about the size of dogs. They had three toes, lived [...]