A crocodile is submerged in water near Camp Khwai River Lodge by Orient Express in Botswana, within the Moremi Game Reserve Wild. The Nile crocodile (Crocodylus niloticus) is a species of sauropoda crocodilio Crocodylidae family. It is one of three species of crocodiles that live in Africa and the second largest in the world, [citation needed] as it can reach 6 m long and weigh up to 730 kg, although their average sizes are 5 meters and 225 kg. He has been both hated and revered by man, especially in Ancient Egypt where crocodiles were mummified and worshiped them. The ancient Egyptians worshiped Sobek, a god-crocodile associated with fertility, protection, and power of the pharaoh. The relationship of the Egyptians with Sobek was ambivalent: sometimes hunted crocodiles, and reviled the god, and sometimes he was seen as the protector of the pharaoh and source of their power. Sobek was depicted as a crocodile or alligator-headed man with Atef crown. The main place of worship was in a city of the Middle Kingdom, Shedet, in the oasis of El-Fayum, in Arabic al-Fayyum, a place that was known to the Greeks under the name of "Cocodrilópolis" or the Ptolemaic Arsinoe. Another important temple dedicated to Sobek is in Kom Ombo. According to Herodotus, V century a. C., some Egyptians had crocodiles as pets. In the Sobek temple pond in Arsinoe lived a sacred crocodile, which was fed, covered with jewelry, and worshiped. When the crocodiles died were embalmed, mummified, placed in coffins and buried in sacred tomb. Mummified crocodiles have been found in Egyptian tombs, including stuffed crocodile eggs. In ancient Egypt it was used magic to appease the crocodiles. Even in modern times, fishermen Nubians stuffed crocodiles lay on the threshold of the door to prevent evil. The crocodile is sometimes also associated with Seth, the god of evil.