15 авг 180000000 г. до нашей эры - Monotremes split from other mammals
Описание:
Monotremes give birth externally, laying eggs instead of carrying a child inside a mother's body. They also differ structurally in several regards from other mammals, such as in the digestive and reprotductive systems. With some exceptions, most of these are extinct today.Добавлено на ленту времени:
Дата:
15 авг 180000000 г. до нашей эры
Сейчас
~ 5883516 г назад