Their esophagus is exceptionally stretchy to allow them to eat huge quantities of berries before nightfall in winter, to allow them to survive cold temperatures without being able to eat in the dark.
hola...
incubator or mother
the got use to the wheather
By eating worms and being very watchful of preators.
Brown bears hibernate, Canada geese fly south away from the winter landscape. Brown bears never survive winter with a Canada goose.