After giving birth, female bighorn sheep lick their newborn lambs. This behavior continues off and on for up to 6 hours, after which mothers no longer lick their lambs. What is/are the ultimate cause(s) of this behavior? Check all that apply.
A. Hormones released during labor stimulate motor neurons in female bighorn sheep, causing them to lick and groom their lambs.
B. The lamb is stimulated by the licking to begin nursing from its mother and the sooner a lamb begins nursing, the better its chances for survival.
C. Licking the lamb removes excess moisture from its coat, preventing hypothermia.
D. When licking the lamb, the mother learns its unique scent so she can distinguish it from other lambs and offer it protection from predators or extreme weather.
E. Female bighorn sheep remember being licked by their mothers and know they must teach this behavior to their own offspring.
Answer: D
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