The most poisonous animal in the world is probably the two-toned arrow-poison frog – only 28 grams (1 ounce) of its poison could kill nearly 3 million people.
During heart surgery in 1970, a patient with haemophilia (an inherited condition which stops the blood clotting) needed 1,080 litres of blood – nearly 15 baths full – as he kept bleeding.
History Facts
The Romans had criminals torn apart by wild animals while the public watched. Dogs or lions were usually used, but sometimes more exotic animals were brought in. .. More >>