Silently read lesson 17, Elk, and talk about the appearance characteristics, living habits and legendary experiences of Elk in about 200 words (according to the content in the article)! Help!

Elk (scientific name: Elaphurus davidianus) belongs to the family Cervidae, also known as the father deer of David. Because its head and face are like horses, its horns are like deer, its neck is like camels and its tail is like donkeys, it is also called the Four Elephants. It is native to the marshland in the middle and lower reaches of the Yangtze River in China. It feeds on grass and aquatic plants, and sometimes it eats seaweed in the sea. It is two meters long and weighs 300 kilograms. Once widely distributed in East Asia. Later, due to natural climate change and human factors, it was almost extinct in the late Han Dynasty. In the Yuan Dynasty, in order to hunt, the remaining elk were captured and transported to the Royal Hunting Garden for breeding. By the19th century, there was only one group left in Beijing Nanhaizi Royal Hunting Park. Soon after being discovered in the West, it was captured by Eight-Nation Alliance and disappeared from China.