the.com/species
Nature's blurry boundary line that refuses to stay where biologists draw it
count unknownMaybe 8 million exist; we've named under 2 million
no clean ruleOver 26 competing definitions, none fully works
ring speciesNeighbors interbreed, but the ends cannot
daily birthsRoughly 18,000 new species described each year
vanishing fastExtinctions running thousands of times the natural rate