It's Okay to Be Smart

How Many Species Are There?

Season 4 Episode 18 | 4m 16s | Video has closed captioning.

How many species are there on Earth? In biology, this is one of a fundamental question that we still don’t have a very good answer for. Imagine if chemists didn’t know all the elements of the periodic table, or if physicists didn’t know all of the particles of the standard model. Knowing how many different species there are is information we need to know in order to protect the environment, but it

Aired: 01/24/17

Rating: NR

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Problems Playing Video? | Closed Captioning