1 â¢ Ozone (O3) is an extremely reactive gas molecule composed of three oxygen atoms. â¢ 2  Ozone forms in chemical reactions in the atmosphere when nitrogen oxides (NOx) and volatile organic compounds (VOCs), also called hydrocarbons (HC), come into contact with both sunlight and heat. â¢ Ozone (O3) is an extremely reactive gas molecule composed of three oxygen atoms. â¢ 2  Ozone forms in chemical reactions in the atmosphere when nitrogen oxides (NOx) and volatile organic compounds (VOCs), also called hydrocarbons (HC), come into contact with both sunlight and heat.
Grolar bears. The offspring of a grizzly bear and a polar bear, a grolar bear is one beast you don't want to meet in the woods. Interestingly, unlike many hybrid animals on this list, grolar bears are known to occur naturally in the wild.
Coldilocks: Female, born December 13, 1980 at Seneca Park Zoo in Rochester, NY. She arrived at the Zoo on October 6, 1981. She weighs over 450 lbs. Polar bears have very good eyesight and hearing although their sense of smell is their most highly developed sense. These remarkable bears have a transparent eyelid (nictitating membrane) that work like a pair of sunglasses filtering out the excessive brightness of snow and sun. They also work as waterproof goggles underwater. Polar bears have 42 teeth and are well adapted to their carnivorous diet.