Simplify the following text for a Grade 6 native English-speaking person.
Original: The head of the brush can be made from the hair ( or feathers ) of a wide variety of animals , including the weasel , rabbit , deer , chicken , duck , goat , pig , tiger , wolf , etc. .
Simplified: The head of the brush is made of the hair of animals , like the wolf , rabbit , deer , chicken , duck , goat , pig and tiger , etc.