Complete the given crossword puzzle with the help of the clues:

 

Across:  

2. The natural home of an animal (7)                                                                                        

3. Changing body colour to blend with the surroundings (10)
6. Cows belong to this category (9)
Down:

1.  An animal that survives on other living organisms (8)
4.  Animals whose feet and hands are adapted for seizing, grasping and holding
objects (8)
5. The act of imitating another organism (7)