Possibly a giant ground sloth or some form of mastodon, only because no one knows anything about their behavior to rule them out. There are sheep and goats, but so far as I know, they are about as tameable as deer.....bring up the Muisca people in South America, who semi-domesticated deer by killing all their predators and feeding them.
I believe the capybara is domesticable and the musk ox as well. Plus people farm rheas now.
Also, they're harvested (traditionally using horses) in the grassier parts of Venezuela. Locally, at least, the Roman Catholic church agreed that because they're semi-aquatic they can be counted as 'fish' for dietary/fasting purposes...Capybaras are semiaquatic, which complicates things, though people do keep them as pets. I believe they also have territorial issues.
The best way would be delay the spread of humans to the new world until perhaps 5,000 BC, and have the settlers from NE Asia at least be familar with the concept of domestic animals. Without the massive OTL extinctions caused at least partially by humans during the 12,000-10,000 BC period, most of the Pleistocene megafauna in the Americas would still be present, with horses and camels being the most likely candidates for domestication. With a later spread of people to the new world, they may be more likely to see the large animals they encounter as potential domestic animals instead of only food to be hunted.
Also, they're harvested (traditionally using horses) in the grassier parts of Venezuela. Locally, at least, the Roman Catholic church agreed that because they're semi-aquatic they can be counted as 'fish' for dietary/fasting purposes...
Llama's are native to southern America, if you can get them to either migrate or be transported north, I think they would fit in great.
The great mammoth steppe, stretched across northern Eurasia, into North America, you could try keeping these in Canada?
Bears are common in America and they aren't that small, just make them larger.
No, llamas are just the domesticated version of the wild guanaco and never existed as wild animals.
Anyway, I think both the wild or the domesticated version of the species would have suffered too much for crossing the Central American jungles, as llamas/guanacos are very restricted to Andean climate. Hot and wet jungles would probably kill them.
Some modern breeds of llamas are more resistant, but we are talking about relatively recent breeds.
and/or a later wave of humans come in who grew a little faster than the Clovis people, and have this and previous background as motive.The best way would be delay the spread of humans to the new world until perhaps 5,000 BC, and have the settlers from NE Asia at least be familar with the concept of domestic animals. . .
Llamas are raised in the US Midwest (a few Alpacas too I believe), more as pets and not so much as livestock. They deal with the hot, humid summers and cold (sub zero Farenheit), snow & sleet of winter pretty well. As you point out, the intense heat and humidity of the tropics might be too much though.
A couple of comments on Llamas;
- I live in central Florida and there are several farms locally which raise llamas successfully, they seem happy in the hot humid summers and quite comfortable with the periods of surprising cold we experiece.
There were giant camelids related to llamas resident in Florida and much of America until the megafauna die-off. Had the early settlers had need of domesticates they would have been a viable alternative to the horse (some were bigger).