In the winter it's very cold on the tundra so the Arctic wolves move to a different area until winter comes again and then they move and so on.
(it; 's; very cold on the tundra; L:In the winter) (the Arctic wolves; move; to a different area; T:until winter comes again and then they move and so on) (winter; comes; T:again) (they; move; T:then)
it the Arctic wolves winter they
's move comes move
very cold on the tundra L:In the winter
to a different area T:until winter comes again and then they move and so on
T:again
T:then