There have been a few badly optimized horse breeding trends. There was a fad in the 1980s for decorative Arabian horses with thin legs. They were not even rideable, but were used as a tax shelter. That, fortunately, is over. The much tougher lines of endurance Arabians now dominate again. They're still beautiful, but good ones can do the Tevis Cup, 100 miles through the Sierras. (Several friends of mine have ridden that.)
Dog breeding is much worse. There are many dog breeds that are barely functional.
jaegrqualm
Genetic diversity is a very interesting topic that’s well worth exploring, but it seems to me that Occam’s razor requires us to consider the possibility they just had a really good, well timed dosage of performance enhancing drugs for Secretariat back in the day.
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abeppu
I think it's surprising that the article predicts the impacts of gene editing to be relatively small.
> Even so, the prospects for exceeding current records through gene editing are slim. Today’s racehorses are already tightly optimized for speed, balancing strength against the cost of carrying additional muscle mass. Adding more muscle is relatively low-hanging fruit, and if this were the key to unlocking greater speed, selective breeding would likely already have brought it about.
It's a whole new tool in the toolbox, and can introduce mutations that didn't first arise by chance in order to be then spread with selective breeding.
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gadders
I don't know why the article goes on so much about Secretariat. Flat races are horse races on easy mode. Steeplechases are proper horse racing
spacedoutman
Someone should really get around to cloning secretariat.
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ChrisMarshallNY
> today, only the genus Equus survives, which includes horses, zebras, asses, and donkeys.
What about hippogriffs?
Asking for a friend...
ta8903
Good article. Doesn't seem to cover when they turned into anthropomorphized girls however.
There have been a few badly optimized horse breeding trends. There was a fad in the 1980s for decorative Arabian horses with thin legs. They were not even rideable, but were used as a tax shelter. That, fortunately, is over. The much tougher lines of endurance Arabians now dominate again. They're still beautiful, but good ones can do the Tevis Cup, 100 miles through the Sierras. (Several friends of mine have ridden that.)
Dog breeding is much worse. There are many dog breeds that are barely functional.
Genetic diversity is a very interesting topic that’s well worth exploring, but it seems to me that Occam’s razor requires us to consider the possibility they just had a really good, well timed dosage of performance enhancing drugs for Secretariat back in the day.
I think it's surprising that the article predicts the impacts of gene editing to be relatively small.
> Even so, the prospects for exceeding current records through gene editing are slim. Today’s racehorses are already tightly optimized for speed, balancing strength against the cost of carrying additional muscle mass. Adding more muscle is relatively low-hanging fruit, and if this were the key to unlocking greater speed, selective breeding would likely already have brought it about.
It's a whole new tool in the toolbox, and can introduce mutations that didn't first arise by chance in order to be then spread with selective breeding.
I don't know why the article goes on so much about Secretariat. Flat races are horse races on easy mode. Steeplechases are proper horse racing
Someone should really get around to cloning secretariat.
> today, only the genus Equus survives, which includes horses, zebras, asses, and donkeys.
What about hippogriffs?
Asking for a friend...
Good article. Doesn't seem to cover when they turned into anthropomorphized girls however.