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The total number of births globally is currently (2015–2020) 140 million/year, which is projected to p ...gh a population bottleneck of between 1,000 and 10,000 people about 70,000 BC, according to the now largely discredited [[Toba catastrophe theory]]. By c ...

There are about 380,000 known [[species]] of plants, of which the majority, some 260,000, [[Spe ...nd [[animal]]s. This classification dates from [[Aristotle]] (384–322 BC), who distinguished different levels of beings in [[Aristotle's biology#Cla ...