How Deer Survive Winter
Like most of the wild animals, deer survive the
cold winter by using energy stored in the summer and
fall, usually in the form of (1) ______.They also 1. ______.
spend (2) ______ energy in winter than in 2. ______.
summer.
Deer always give birth to their fawns in May
or June. This is good (3)______, because it 3. ______.
coincides with the time when plenty of new plants
are available. The mother deer must have enough
food both to meet the needs of their own bodies
and to produce (4) ______ for their fawns. As 4. ______.
the fawns grow, they become less and less
(5) ______on their mothers. As winter comes, 5. ______.
deer’s hair becomes darker and (6)______. 6. ______.
Besides, nature provides another (7)______to 7. ______.
help them survive the cold weather. They become
somewhat slow and drowsy. Their heart rate
(8).______.This is an internal physiological 8. ______.
response which is to (9) ______their cost of 9. ______.
energy.
All these practices and responses that increase
deer’s chances of survival in winter are the result of
thousands of years of (10) ______. 10. ______.