We had wild camels in the US until the 1940s. They were the offspring of escaped or released camels from the US Camel Corps
The Americas had the wooly mammoth way back when, why not elephants too?
I’ve somewhat tongue-in-cheekily argued that they should introduce the cheetah to North America (or reintroduce if you count the Pleistocene variety.) Part of the problem with the out-of-control deer population is that deer are relatively hard to catch and kill and so their traditional predators would much rather have a nice fat sheep or cow if they’re avaliable. A cheetah, though, wouldn’t break a sweat running down a deer but domestic sheep and cattle are generally too big for them so there wouldn’t be the same livestock predation issues.
Black rhinos historically ranged into temperate areas in Africa, as far as its southern tip at about 34 degrees South. This is about the same latitude as northern Texas. Rhinos could certainly survive in Florida and southern California and up into the middle of Arizona, New Mexico, and Texas.
As Lemur866 says, moist tropical forests extend as far north as Veracruz in Mexico. From there south, much of the Caribbean slope was once covered in moist tropical forest. Of course the largest area of tropical forest in the world is in South America.
Several species are doing well in Ohio…
I wouldn’t call any of those African (assuming you mean the common starling).
Forget Australia- camels can survive in the Arabian desert. This is an animal whose ancestors lived in the Arctic, bear in mind. They can probably survive anywhere.
I am well aware that S America has many different climates too - from frozen desert in the far south, to pampas, tropical jungle and high mountains.
The OP failed to indicate whether he was talking about the USA, North America, or the whole continent. I assumed, without any other basis than this forum is largely N America centric, that ‘here’ was N America.
Conditions were much warmer when camels lived in the Arctic.
Nor is that camel necessarily ancestral to modern camels.
This said, since camels can survive in Central Asia they are not very susceptible to cold.
Regarding the feral camels from the “US Camel Corps” experiment:
They abandoned the idea, and the remaining camels, at about the time of the Civil War. Various dates are given for “last sightings”, depending on which ones you consider to be reliable accounts. Sightings of camels in Arizona in 1901 seem to be authenticated, later sightings in Az or SoCal are debated. At any rate, the American southwest isn’t really an ideal environment for them. Too rocky. The camel’s foot is adapted to sandy deserts - difficulties with the rocky terrain was one of the problems they had with the Camel Corps. They tried to come up with a way of shoeing them, but never quite satisfactorily.
How are the swallows doing?
The OP said “the Americas” in the thread title. That indicates all of them – the whole Western Hemisphere.