In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
Iron weighs more after it rusts.
16
Each day, up to 150 species of life become extinct.
-23
Scientists aren't sure what color dinosaurs were.
312
The bark of an older redwood tree is fireproof.
65
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Pure water (H2O) does not conduct electricity on its own.
46