How Many Species Are There?

Scientists can not answer this question until now. But are there any ways to get this knowledge?

How many species exist on Earth? In biology, this is one of the fundamental questions on which scientists still do not have a reliable answer. Imagine what would have happened if chemists did not know all the elements of the periodic table, and physicists did not know all the particles of the standard model. Understanding how many species there are on Earth will help us protect the environment. However, determining the number of species is much more difficult than you can imagine.

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