Every year thousands of new oak trees grow in the world just because squirrels cannot remember where they hide their acorns.
Napoleon wrote good and unusual novels, such as "The Duke of Essex," the novel about ghosts
Oysters can change their sex from male to female. They can do this countless times.
A duck’s heart beats twice as slower when it dives.
The museum dedicated to skyscrapers is located in New York.
The first ski competitions were held in 1893 in Mürzzuschlag in Austria.
