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Bioluminescence
Bioluminescence is the production and emission of light by a living organism as the result of a chemical reaction during which chemical energy is converted to light energy. Bioluminescence may be ... > more -
American Black Bear
The American Black Bear (Ursus americanus), also known as simply the black bear or cinnamon bear, is the most common bear in North America. Black bears prefer forested and shrubby areas but use wet ... > more -
Extinction
In biology and ecology, extinction is the cessation of existence of a species or group of taxa, reducing biodiversity. The moment of extinction is generally considered to be the death of the last ... > more
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