A recent UN report on biodiversity says we’re doing a lot lately to simplify life on Earth — which is actually a bad thing. Life has evolved to be complex, rich and diverse. The current massive decline in biodiversity is expected to make the planet as a whole ecosystem a bit weaker, more fragile.
Now, scientists say loss of species diversity also raises the risk of human disease. But first, a quick look at what we mean by “biodiversity” by Mr. Christopher’s 7th period biology class:


