Tropical Waters
Female whales and their calves stay in tropical and subtropical waters all year round. They can be found in the Atlantic, Pacific and Indian oceans throughout their lives. They breed only in tropical waters; the breeding ground is close to the equator. Usually a group of male whales will enter the breeding area with the females. Once the females give birth to calves, they practice communal childcare in tropical waters.
High Latitudes
Only the male sperm whale migrates to high latitude and cooler waters. The males travel in groups up to 50 to the northern parts of the Pacific and Atlantic oceans. A whale will often change groups and even migrate on its own. Male sperm whales travel to high-latitude waters to hunt for food. When it's time to breed, the largest male will enter the warm tropical waters near the equator. After breeding it will swim back to higher latitudes.
Deep Water
The sperm whale is the deepest-diving whale. It can dive to depths of over 3,000 meters and stay down for over an hour. The sperm whale lives on the ocean's surface and dives to hunt for giant squid, which live in the deepest parts of the oceans. The whales will travel in groups, or pods, to deep waters of the Pacific, Southern and Atlantic oceans. They dive to deep waters while others protect the young and vulnerable members of the pod.
Uninhabited Areas
The only ocean in the world that is uninhabited by sperm whales is the Arctic Ocean. These whales also don't live in the Southern Ocean close to Antarctica. They are rarely seen near coastlines except when they become beached.