Mediterranean Sea million years ago (mya) in less than two years by the Zanclean flood. Water poured in from the Atlantic Ocean through a newly breached gateway now called the Strait of Gibraltar at an estimated rate of about three orders of magnitude (one thousand times) larger than the current flow of the Amazon River. The Mediterranean Sea has an average depth of and the deepest recorded point is in the Calypso Deep in the Ionian Sea. The coastline extends for . A shallow submarine ridge (the Strait of Sicily) between the island of Sicily and the coast of Tunisia divides the
Corfu lizard and the snake-eyed skink as also the legless Greek slow worm and the European glass lizard. Of the snakes of Corfu only the nose-horned viper is potentially dangerous. The harmless snake list includes the European worm snake, the javelin sand boa, the Dahl's whip snake, the Balkan whip snake, the Caspian whip snake, the four-lined snake, the Aesculapian snake, the leopard snake, the grass snake, the dice snake, the European cat snake, the eastern Montpellier snake. In 1985 a Yellow-lipped sea snake was photographed in the sea which had probably escaped from captivity. Corfu has a hot-summer Mediterranean climate