Question

which winter survival strategy is not used by rocky mountain elk?
build up fat reserves by eating as much as possible during the fall.
change diet.
hibernation in a sheltered location.
migration to lower elevations.

Explanation:

Rocky Mountain elk do not hibernate. They build up fat reserves in fall, change diet (e.g., eat woody browse in winter), and migrate to lower elevations for better forage and less harsh conditions. Hibernation is not a strategy they use.

Answer:

C. Hibernation in a sheltered location.