177. Animal Migration: Why do they do it?

Match it! Select the correct answer from the pull down...Good luck!

Salmon are born in rivers and then travel to the seas. When they are ready to reproduce, they head back to the rivers. They find their way back to where they were born by using biological clocks or ocean currents.

Some birds migrate thousands of miles.

Some birds and the Monarch butterfly migrate using their sight and smell or sight and memory.

According to the video, the Arctic Tern travels the farthest of all the known animals. It _____________up to 12,500 miles in no longer than 12 days.

Some animals can orient themselves using their bodies like a compass or biological clock.

Some science suggests that some insects, fish, turtles, mammals and birds can orient themselves by following the tide cycles or the cardinal points.

The earth’s magnetic field or star formations help some animals guide their migration trail.

Migration means a temporary change in _________________.