Space/Science — HabitableZone

Space/Science » in reply to Oh, in case it wasn't clear enough, the "30,000 a year" number is crap.

Got proof?

Know how many species of animals there are on Earth?

Estimates range from 2 to 100 million. Then there are plants and other organisms. It doesn't take a very high rate to give 30,000 per year.... assuming 30 million total species, 30,000 exctinctions per year is only 0.1%.

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