This is an unusual book: it is dedicated to the scientific facts of biology and at the same time full of humor. Its author, a wonderful journalist, biologist and philosopher Iorg Zittlau, talks about the funny mistakes nature has made during evolution. Most people do not even suspect that a gopher after hibernation does not remember anything from its life until the moment it fell asleep, and dolphins never sleep, because if they fall asleep, they will simply suffocate. For the giraffe, the structure of its body is more of a curse than a blessing, and poor snakes love nothing more than to eat newts, which paralyze their body so much that they become easy prey for their enemies. Making mistakes is common not only to humans, but also to nature!