When an oil spill occurs, often due to a ruptured oil tanker or leaking oil rig, people around the world are awed by the damage to the environment. Many oil spills are caused by human error, but ther …

They're cute, most of them are smart, and they make great friends. No, not the kids in your class. Pets! An estimated 36 million homes in the United States have at least one canine. About 31.4 million …

…

…

…

…

Proteins run our show. Muscles, organs, hair, bone, and skin either contain or are made of proteins. They are a major component in all of our cells. Enzymes that run the chemical reactions in our bodi …

…