The Nile Crocodile

Answer 1

The Nile crocodile, also known as the Nile crocodile, was an animal of the Crocosuchus family, also known as the African crocodile. It was the second largest living crocodile after the saltwater crocodile and the largest crocodile in Africa. The adult body was 3 - 6 meters long and weighed 100 - 1000 kilograms. Its body was dark bronze in color, with black spots and stripes on its back, dark yellow on its abdomen, and yellow-green on its sides. There were dark spots arranged in various patterns into diagonal stripes.

Nile crocodiles were widely distributed throughout sub-Saharan Africa, mainly in the central, eastern, and southern regions of the African continent. They were distributed in 26 countries, and there were many wild crocodiles. Despite its name, most Nile crocodiles did not live in the Nile River, but they were distributed north to the Mediterranean coastal area of the Nile Delta, across the Red Sea of Israel, Israel, and Syria, and from the regional tributaries of the Nile River in the Sultan and Lake Naser in Egypt to the Okavango Delta in Angola and botswana, and the Ollivante River in South Africa. They not only inhabit lakes, rivers, swamps, but also saltwater environments. For example, the Nile crocodile in Madagascar migrated through the straits to form a population. Nile crocodiles were distributed in both the tropics and the temperaments and could survive in relatively low temperatures. For example, the lowest temperature in Lake Engel in Namibia was 2 degrees Celsius, and the lowest temperature in Kadoma in July was 8.1 degrees Celsius. They were often more active at night than at noon.

The Nile crocodile had a four-chambered heart chamber. Although it had a temperature-changing characteristic due to the elongated heart membrane, it was physically similar to the heart of a bird and was particularly effective in the blood oxygen supply. It has 64 to 68 conical teeth (about a dozen fewer than alligators). During most of a crocodile's life, broken teeth can be replaced. On each side of the mouth, there are five teeth in the front of the upper jaw (prejaw), thirteen or fourteen in the rest of the upper jaw (upper jaw), fourteen or fifteen on both sides of the lower jaw, and an enlarged fourth lower tooth embedded in the groove of the upper jaw. When the jaw is closed, it is clearly visible. The raised canine-shaped teeth are used to tear large prey. There was a hard piece of skin at the top of the baby's mouth, called an egg tooth, which was used to break through the eggshell during hatching.

In ancient Egypt, the Nile crocodile was used to form the Nile crocodile army. This army originated from the Middle Kingdom period (about 2000 B.C.) during the reign of the ancient Egyptian Pharaohs. The Egyptians cultivated the Nile crocodile as a tool of war to defend the territory of the Nile River. Trainers were called "Crocodile Masters" or "Crocodile Priests." They used sounds, gestures, and food to motivate and control the crocodiles 'behavior. After a long period of training, the crocodiles would listen to instructions such as standby, forward, and stop.

In modern times, there was a famous Nile crocodile named Gustav. It was 6 meters long and weighed 1000 kilograms. It was considered one of the largest Nile crocodiles discovered between 1987 and 2005. It was found on the north bank of Lake Tanganyika and the Ruzizi River in Burundi. It hunted many large mammals such as wildebeest and hippopotamus, causing a large number of casualties.

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