Why is it called bull market and bear market?

it's called a bull market, because when the stock market price rises, the market is hot and crowded, which is as spectacular as the herd of cattle in the traditional market, so it's called a bull market. The name of the bear market comes from the pioneering era in the western United States. Later, Americans regarded bears and cows as rivals. Since the bull market is called bull market, the short market is nicknamed bear market.