Dogs

Reference: http://en.wikipedia.org/wiki/Dog

Summary: Dogs can come in many shapes and sizes. It is part of the Canidae family. The word dog can mean the male of a canine species. They we tamed from the gray wolves over 15,000 years ago. It is very common for dogs to shed their coat, or fur. Their fur can be can be short, long, curly, or smooth. There is an estimated 400 million dogs in the world.

Critique: I honestly love dogs, well the friendly kind.

Impact: The impact they have on the Earth is not as big as the one they have on humans. They can help the blind out by being their eyes. They make good police dogs when trying to find people and suspicious items.