ANIMAL BEHAVIOR
INTRODUCTION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
imprinting
|
|
|
hibernation
|
|
|
migration
|
|
|
trial and error
|
Detailed explanation-1: -Twice a year, caribou journey between their summer and winter range. A variety of factors influence the timing and route of migration. In a single year, most WAH caribou walk over 2, 000 miles. One WAH caribou walked over 2, 700 miles which is the longest recorded annual movement to date.
Detailed explanation-2: -Like most herd animals, the caribou must keep moving to find adequate food. Large herds often migrate long distances (up to 400 miles/640 km) between summer and winter ranges. Smaller herds may not migrate at all.
Detailed explanation-3: -In northwest Alaska, caribou travel up to 2, 737 miles (4, 404 km) per year (Joly and Cameron 2017). One of the main purposes of migration is to minimize exposure to predation, especially during calving when young animals are particularly vulnerable (Fryxell and Sinclair 1988).
Detailed explanation-4: -Caribou adjust their migration timing based on weather and environmental conditions where they are. Caribou make some of the longest-distance migrations on the planet, yet how they decide when to migrate south in the fall has remained a bit of a mystery.