The existence of reproductive isolation, so that these situations can not occur, even if there are some individuals of different species sometimes complete the mating, but they generally can not produce offspring, or produce offspring can not continue to reproduce
In the world of insects, a variety of successful strategies have been developed to avoid dying from the cold
Kellogg adopted a 7-month-old female chimpanzee from a charity and named her Goya. Donald and Goya live together every day living, eating and moving around. The surrounding neighbors have since been amazed to find the child next door in and out with the orangutan!
