2 ms·

if that was the case, flies would have evolved to adapt to zebras by now.

• anon1m0us 7y ago
  It only repels 50% of the bites though. Thus, those that bite, will survive and make babies. Some of them will be able to bite, others not. Eventually, only those that can bite will survive. I don't see how it can go the other way. Where eventually since only half of them bite, that ratio declines to zero. Can that happen with evolution? I suppose there is a tipping point where if enough of the population can't find each other then they all die alone. Like rats in Alberta.
  • lurquer 7y ago
    50% less bites does not imply only 1/2 of flies are biting. It's more likely that each fly bites only 1/2 as much.