in addition to the reasons other commenters mentioned for why they probably do die but you don’t see them, it seems important to note that wild birds probably are infected far less often than chickens because they aren’t packed beak-to-cloaca in cages with poor ventilation 24 hours per day.

Nope, Turner's is the only nonlethal monosomy, but there are 2 more non-sexual trisomies that aren't lethal, 13 and 18 iirc.

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How many dead birds do you see during periods when avian flu isn't running rampant? Personally I see very few. I know all birds must eventually die, but the ratio of live to dead birds I see is probably in the thousands.

It's also probably the same reason you didn't see people keeling over from covid in restaurants and stores. Lots of people were dying, but the people on the verge of death were not out at stores and restaurants following their normal routine, they were either hospitalized or stuck in bed because they were so sick they were literally dying. I would imagine birds that are so sick they would just "drop dead" out of the sky are probably not expending tons of energy flying around for no reason and are huddled down and sheltered somewhere desperately trying to just survive.

It definitely can. Statistically, most people died in childhood from the many fevers, whooping cough, tuberculosis, syphilis, measles, polio, malaria, and infected wounds. There are even more tropical diseases, which is why Europeans had a life expectancy of 1 year in Central Africa prior to their discovery of Quinine.

Adult women then had to chance the maternal death rates due to hemorrhage and puperal fevers.

Those are the greatest reasons behind the 32 year life expectancy.

You can also credit sanitation, agriculture and industrialization, but vaccination soon after birth is mandatory for a reason, and that is why we had a way higher population than what ancient Rome and China could support, even with their excellent infrastructure and decent agricultural capacity.

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Right, but that would’ve only been possible if the Neanderthals had enough extra food to feed themselves and the disabled Neanderthal. You don’t necessarily need agriculture to have an abundance of food, but it certainly helps a tonne to make food abundance widespread.

It still circles back to being about food in the end.

Where I live they litter the beach because we have a lot of sea birds and many of them wash up due to currents despite living most of their life far from where humans do. Birds cover wide ranges and rarely interact with humans unless it's just to gain some food before taking off again to cover wide territories that often consist of large wild parts humans and predators find it difficult to reach them. Any that do die and fall are usually eaten very fast by scavengers, even on the beach the crabs come and clean up in the night.

Interestingly, our empathy "to care for the weak" may be more important than our knowledge of farming and agriculture here - we've found Neanderthal fossils that were severely disabled in life and would have been unable to care for themselves, but whose bones reveal that their initial injuries healed and that they lived on for years despite being "dead weight" (physically, at least).

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When wild birds are affected by a disease, they may die in areas away from human populations, such as in remote wetlands or forests. Additionally, scavengers such as other birds or mammals may quickly consume the dead birds, making them less likely to be seen on streets or in other urban areas. In some cases, birds that are sick may also hide or isolate themselves, making it less likely for them to be seen before they die.

This is a very specific phenomenon though. 47 chromosomes are almost always incompatible with survival to adulthood unless the extra chromosome is a sex chromosome or a 21, and I don’t think monosomy of any of the autosomes is compatible with life.

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They probably fall into a bush and are eaten by rodents and other birds. You’d probably have to really look for them to find them. Find where they spend most of their time chilling (the sick ones won’t come out to eat with the others) and look for bird bones around there near where they perch.

That would be my guess anyways

It's about how the vaccine is taken up by the body. IM is a much slower release than IV which minimises reactions, especially anaphylactic shock and more serious side effects.

Agreed. Reducing the complexity of the human experience to "medicine" was a bit reductive on my part, although it certainly plays a part.

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Our body does not have a defense mechanism against ionizing radiation, that is true. Though, we do have countermeasures against its effects.

DDR, or DNA-damage-response, is a cluster of measures cells regularly deploy to restore DNA damage caused by radiation, amongst others. They are not without failure, which is why cancer exists. Nevertheless, these processes are exceedingly powerful when it comes to restoring defective DNA. Without them, cancer would be more frequent by several orders of magnitude.

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The thing is that with science we CAN explore how things happen. There isn't really a "why" in evolution though. I mean, there is a why in the proximal sense, but there's no plan. Alleles either propagate in a population or they don't. With good data analysis we can map how that happened, when it happened, and we can postulate and test what causes it to happen.

This is correct but the glute area is in some cases frowned upon due to the depth of subcutaneous fat potentially being too deep to ensure intramuscular injection. For example the rabies vaccine is to not to be injected in the gluteal area. Don’t wanna risk depositing the vaccine in fat when it comes to rabies!

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