Assertion: wood frog | /r/AtLocation | place
Facets:
value: as far north as canada
type: LOCATION
Source sentences:
text: The wood frog, Rana sylvatica, live in places as far north as Canada and Alaska, and are able to survive the freezing winters by allowing itself to freeze, but limiting the damage by using cryoprotectants (such as glucose and urea in the blood) to reduce internal ice formation.