These amazing animals

A set of books, which included the following stories:
"Animals-giants".
There are real giants among animals. Some have the longest legs in the world, others have a huge body, and some many times larger than their relatives from other families. In animal giants are few enemies in the wild, but it is difficult to be huge. You have to look for food and protect the cubs all the time while they are small and defenseless. Nobody dares adult giants ... except for a person who hunts all animals, small and large. In this book you will meet nine animal giants. They themselves will tell you how they live.
"Miracle of Nature".
The history of the sea sponge is lost in the depths of centuries. The bizarre animal of various forms and shades was the same age as dinosaurs and today continues to live in sea depths, like millions of years ago. Why are the sponge called the living filters of the ocean? How does a sponge breathe? What is eating? With whom does he conclude strong alliances? This cognitive book will answer such and many other questions. It will also be useful for those who study the world around us at school.
"True assistants".
Dogs, cats, pigeons, elephants, cheetahs and all those about whom this book talks about were not always flexible and meek assistants to people. But without them, a person would still live in a cave. They helped him save the crop, hunt, travel, have fun and even fight. The long history of human and animal friendship is filled with amazing, sometimes dramatic events. The creators of this colorful cognitive book with gratitude and admiration talk about our “smaller brothers” and teach to appreciate the strong friendship between people and animals.
"Masters-builders".
Animals, like people, need a house. They choose a suitable place for this -guest, safe, so that no one bothers them. Some are arranged high on a tree, some underground. Some build from the ground and twigs, others from a light web, and others - from sand ... Each builder has its own unique handwriting. There are animals that live one by one, and there are lovers of a large, noisy society. Nests, tunnels, hunting networks, dams - find out what the masters -builders are capable of.
"The best parents".
Animals also really need mothers and dads. The heroes of this book are unusually caring parents. You will learn how the imperial penguin, fox, orangutan, red fish, red flamingo, red kangaroo, zebra amadine, wolf and sea hobby take care of the kids. And the cubs of these wonderful dads and mothers themselves will tell you about this.
For young naturalists from five years and older.