Each day, up to 150 species of life become extinct.
-23
The bark of an older redwood tree is fireproof.
65
Cold water weighs more than hot water.
93
Scientists aren't sure what color dinosaurs were.
312
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
A cubic yard of air weighs about 2 pounds at sea level.
31