Diving Seals Take A Nap

When elephant seals migrate from California to the mid-Pacific and around Alaska, they can spend two to eight months without stopping. Because there's no land to bask in the sun on and the seabed is miles below the surface, scientists didn't know how they slept during this period. However, a new study shows that elephant seals may use their long dives — sometimes up to 984 feet — to take a little nap. During the dives, they lay back and allow themselves to sink.