<P> The sperm whale is a pelagic mammal with a worldwide range , and will migrate seasonally for feeding and breeding . Females and young males live together in groups , while mature males ( bulls ) live solitary lives outside of the mating season . The females cooperate to protect and nurse their young . Females give birth every four to twenty years , and care for the calves for more than a decade . A mature sperm whale has few natural predators , although calves and weakened adults are sometimes killed by pods of orcas ( killer whales ) . </P>
<P> The sperm whale is a pelagic mammal with a worldwide range , and will migrate seasonally for feeding and breeding . Females and young males live together in groups , while mature males ( bulls ) live solitary lives outside of the mating season . The females cooperate to protect and nurse their young . Females give birth every four to twenty years , and care for the calves for more than a decade . A mature sperm whale has few natural predators , although calves and weakened adults are sometimes killed by pods of orcas ( killer whales ) . </P>
what ocean zone does the sperm whale live in
what ocean zone does the sperm whale live in
a worldwide range
a worldwide range