It’s a thing that has ticked me off and that i often see on wikipedia or scientific papers when reading about extinction events.
There’ll often be sentences like: “Earth’s largest extinction killed 57% of all families, 83% of all genera and 90% to 96% of all species”
Does the “all species” mean that 90% of biologically different species died, or that 90% of individuals died?
In: 1
It means biologically different species. So if there were 100 different species of animals, 90 of them were wiped out.
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