reproduction

From: Pieter Arend Folkens (animalbytes@earthlink.net)
Date: Wed Nov 13 2002 - 02:43:43 EST

  • Next message: Pieter Arend Folkens: "extinction"

    >WHAT I MEANT BY OVERPRODUCE IS DO THEY HAVE TO MANY BABIES? BECAUSE
    >MOST ANIMALS HAVE MANY OFFSPRINGS FOR A BETTER CHANCE OF SURVIVAL

    Many placental mammals have only one offspring at a time. This
    includes all whales and dolphins, elephants, cattle, and others.
    Felines and canines have "litters" of several offspring.

    Many of the 'higher' mammals which have only one at a time invest a
    great amount (years worth) of parental attention into the offspring
    to increase the chances of survival, rather than leaving the progeny
    to their inate instincts after only a few weeks. This would include
    toothed whales, elephants, and humans.

    The issue then becomes having an offspring too often rather than too
    many at one time.

    Cheers,

    Pieter Folkens

    -- 
    

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