The biological tendency or characteristic of reproducing through fissiparation; the evolutionary strategy of asexual reproduction by splitting.
From fissiparous (Latin 'fissus' + 'parere') + -ism (suffix denoting practice, tendency, or characteristic); a rare technical term.
Fissiparism is why some organisms are nearly immortal—they don't age like sexual reproducers do, they just keep splitting indefinitely until conditions change!
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