Since Life has existed on Earth, new species have emerged whilst others have become extinct. What kind of place was it where life first appeared? How does evolution affect the development of species? What is a living fossil? And why are so many animal species of our time threatened by extinction?
Lue ja kuuntele ilmaiseksi 42 päivää!
Peruuta milloin vain
Kokeile nyt ilmaiseksi
