Beware -- Red Tide!
Biology / Plants
Red tides occur in oceans. They are not caused by herbicides or pollutants, but by a microscopic alga. Karenia brevis, when in higher than normal concentrations, causes a red tide. This bacterium actu continue reading this fact
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New Ideas About An Old Puzzle
Biology / Human Mind
There's a familiar way of talking about language as a 'tool,' but of course that's just a metaphor. Literal tools made of rock can last for millennia as evidence of the skills of early humans. Not so continue reading this fact
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How Do They Grow Those Colossal Pumpkins?
Biology / Plants
Those enormous pumpkins that set records every fall are living proof that both genes and environment make living things what they are. Home gardeners out to break the 2002 record for the world's large continue reading this fact
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