If you think those 21 species were the only ones going extinct you're badly informed.
About 200 plant and animal species go extinct every day.
About 200 plant and animal species go extinct every day.
My money would be into the molluscs lost as collateral damages by the effects of the Saint Lawrence Seaway, and the birds by a combination of touristic development plus Mikonia tree invasion starting on 60's and 70's.
Just because it has happened, doesn’t mean we should endorse and accelerate it. What we do determines the future.
Why?
However, in my opinion, it's a rather uninteresting hypothetical because human activity absolutely does play a huge role in the extinction of species today.
What about the ramifications of doing so?
I’m not sure fiddling with natural levels of extinction are smart.