Some worms eat a night (meaning they are nocturnal) and some worms eat during the day (diurnal). Most birds eat only during the day, so they are only eating diurnal worms, (due to the fact that nocturnal worms are burrowing during this time). Each spring the worms produce 500 offspring, but only 100 of them live long enough to reproduce themselves.
Variation:
Adaptation:
Overproduction of offspring:
Possible descent with modification:
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Some worms eat a night (meaning they are nocturnal) and some worms eat during the day (diurnal). Mos...
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