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.
Grizzly Bear. Ursus arctos horribilis. Standing as tall as 2.5 m (8 ft) and weighing up to 360 kg (800 lbs.), the grizzly bear is a subspecies of brown bear that inhabits western Canada and the northwestern United States.Grizzly bears are specially adapted to survive the changing seasons.regnant grizzly bears even give birth in their sleep! Midwinter, grizzly bear cubs (usually born in pairs) arrive into the world blind, hairless, and toothless. They use what little strength they have to nestle into their mother and nurse. For a month, the cubs feed on their motherâs milk and gain strength.