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? asked in Science & MathematicsZoology · 1 month ago

Doesn't a 'safety in numbers' birthing/hatching tactic mean that some individual newborn animals are being asked to 'take one for the team'?

for the greater good of the species by becoming dinner for waiting predators? Like the group of predators that gather on a beach, knowing a feast is waiting if they can just wait out turtle hatchlings, but the sheer number of the hatchlings means a glut which means the surviving hatchlings are able to make it to the water unmolested?

7 Answers

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  • ?
    Lv 6
    4 weeks ago

    The alternative would be ALL of them doing that!!!!!!!!!!!!!!!

  • ?
    Lv 7
    1 month ago

    Your phrase "are being asked" makes your question difficult to answer because nature doesn't "ask" any organism to do anything.  Different kinds of organisms follow different strategies for maximizing their numbers of surviving offspring.  One strategy is to produce many offspring.  A given turtle doesn't produce a truly large number of offspring, but when many female turtles gather together on a beach, the high total number of offspring may give each female a better chance at reproducing. 

  • 1 month ago

    That's a bit anthropomorphic but there is a selective advantage to the synchronized hatching, as you have noted. BTW, once the turtles make it to the water, the fishes are awaiting their turn to eat them. The synchronicity is also shown in "mast years". If trees such as beech produces fruit every year, but in fewer numbers, squirrels and other mast-eaters could wipe out the population. By not producing fruit every year but all producing lots of fruit at the same time, reproduction can match or exceed the numbers needed for replacement.

  • ?
    Lv 4
    1 month ago

    That is the very reason such species have such large numbers of offspring because only a small number survive.

  • 1 month ago

    Not really.  No individual is asked anything.  they roll the dice and take their chances just like all the other individuals.

  • 1 month ago

    Sure. So?     

  • Dixon
    Lv 7
    1 month ago

    That is an emotive and poetic way to put it - there is no asking or intention as such - but essentially yes. If the hatching took place over a prolonged period then predators would pick off every single newborn. But when many hatch at the same time there is a limit to how fast predators can catch and eat them.

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