15 interesting facts about animals are not included in textbooks

The animal world always contains surprises that you have never heard in school. The following 15 photos will show you this.

1. Penguins really have knees.(Photo: BrightSide).

2. The elephant's legs have a bone structure similar to human legs.(Photo: BrightSide).

3. This is the sleeping pattern of a owl.(Photo: BrightSide).

4. Special foot structure of a platypus.(Photo: BrightSide).

5. Cats do not feel sweet because their tongue does not have a sense of taste.(Photo: BrightSide).

6. This is a whale's skull.(Photo: BrightSide).

7. The tail feathers of an elephant.(Photo: BrightSide).

8. Some starfish can carry squares due to genetic mutations.(Photo: BrightSide).

9. Chinese deer in vampire-like form with long fangs.(Photo: BrightSide).

10. Cows don't have upper teeth.(Photo: BrightSide).

11. Bearded vulture with scary hunting face with colorful fur.(Photo: BrightSide).

12. The baby elephant has a habit of sucking his cock, like the habit of sucking a child's hand.(Photo: BrightSide).

13. The door teeth of beaver are orange due to the iron element.(Photo: BrightSide).

14. Transparent shark eggs.(Photo: BrightSide).

15. An Indian giant squirrel is multicolored and can be up to 1 meter long.(Photo: BrightSide).

1. Animal World - Interesting things you don't know
2. Unexpected facts about animals may not be known to you