In the United States alone 30 kinds of the Botfly species have been found. To name a few are the Mouse Bot Fly, Horse Botfly, and the Human Botfly. The bot fly will hijack a mosquito to inject the host with the eggs. It latches onto several species which allow the larvae to enter the skin of the host.
On 29 October 1929, the US stock market crashed. The day became forever after known as Black Tuesday. The so-called Great Crash is known by a a variety of monikers including the Wall Street Crash of 1929 and the Stock Market Crash of 1929.
Economists continue to study the Great Depression because they still disagree on what caused it. nation as to why the Depression happened or why the economy eventually recovered. The 1929 stock market crash often comes to mind first when people think about the Great Depression. The crash destroyed considerable wealth. Perhaps even more important, the crash sparked doubts about the health of the economy, which led consumers and firms to pull back on their spending, especially on big-ticket items like cars and appliances. However, as big as it was, the stock market crash alone did not cause the Great Depression.