American bison.
Cattle from the East could not survive on the tough prairie grasses, but the could easily survive the harsh climate of the plains.
yes
they change the temp.
they eat bugs
the wild pig can usually survive in hotter climates, such as Texas, California, and in the Hawaii islands. so the temp would be from about 45-85 degrees Fahrenheit
Germs cannot survive in both warm and cold climates but many germs have a ability that they adapt the warm and cold climates after some time
Since they are found in tropical climates, yes they can.
Magic. Heat.
their climates are hard to survive in.
Dig through the snow for food
Yes.
they definitely eat worms or producers