Bamboo can grow up to 91 cm (35 in) in a single day, making it one of the fastest-growing plants on Earth.
Octopuses have three hearts: two pump blood to the gills, while the third pumps it to the rest of the body.
Honey never spoils. Archaeologists have found pots of honey in ancient Egyptian tombs that are over 3,000 years old and still edible.
The Eiffel Tower can be 15 cm (6 inches) taller during the summer due to the expansion of iron in the heat.
Cows have best friends and form close bonds with other cows.
The shortest war in history was between Britain and Zanzibar on August 27, 1896. Zanzibar surrendered after 38 minutes.
Kangaroos cannot walk backwards.
A group of flamingos is called a "flamboyance".