So if you actually do the research, you find out that in the world there are about 50,000 different types of spiders, and there are about two dozen that are venomous out of 50,000.
実際に調べてみると 世界には およそ５万種のクモが生息し そのうち毒を持つのは 24種ほどだとわかります ５万種のうち それだけです