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← Insects are scared to death of fish

SpEcImEn128's Avatar Jump to comment 11 by SpEcImEn128

Comment 3 by JuJu :

If larvae are stressed to the point of death prior to metamorphism doesn't that mean they aren't surviving long enough to pass on their genes? So wouldn't that characteristic eventually fade out based on the principles of natural selection? And wouldn't the ones that don't stress out to the point of death, or lack of development, be the ones that survive to breeding age and spread the genes that don't exhibit theses behaviors. Rather wouldn't they spread the genes that allowed them to avoid that fate in order for the species to survive. Wouldn't the genes that code for stressful dying eventually become less prevalent within the population?

They are stressed to the point of death in THAT specific environment, not in the wild. Stress is adaptive in natural conditions, it makes them stronger, faster and heal quickly (increased cellular growth) to the expense of their health... It's a tradeoff

Fri, 28 Oct 2011 18:25:57 UTC | #885034