Quote:
Wild birds that get sick are eaten by critters. The ones who don't get sick live to breed on. Nature has its own "hatchet".
Yer playin' absolutes...not all wild birds that get sick, are going to be eaten by wild animals...& the ones that don't get sick are the ones that aren't exposed to the pathogen...
Exposure equals sickness
Exposure can equal death
Therefore any survivors Exposed can & will pass on a stronger immunity to progeny!
THERE! Plain & simple in linear logic...
Wild birds that get sick are eaten by critters. The ones who don't get sick live to breed on. Nature has its own "hatchet".
Yer playin' absolutes...not all wild birds that get sick, are going to be eaten by wild animals...& the ones that don't get sick are the ones that aren't exposed to the pathogen...
Exposure equals sickness
Exposure can equal death
Therefore any survivors Exposed can & will pass on a stronger immunity to progeny!
THERE! Plain & simple in linear logic...