Sperm whale Sperm whale The sperm whale ("Physeter macrocephalus") or cachalot is the largest of the toothed whales and the largest toothed predator. It is the only living member of genus Physeter and one of three extant species in the sperm whale family, along with the pygmy sperm whale and dwarf sperm whale of the genus "Kogia". 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
Mesoplodont whale what effect this has on the population. Longman's beaked whale ("Indopacetus pacificus", also known as the Indo-Pacific beaked whale or the tropical bottlenose whale) was originally assigned to "Mesoplodon", but Joseph Curtis Moore placed it in its own genus, "Indopacetus", a taxonomic assignment which has been followed by all researchers. Two extinct species of "Mesoplodon" are known, "M. posti" and "M. slangkopi". Mesoplodont whale Mesoplodont whales are fifteen species of toothed whale in the genus Mesoplodon, making it the largest genus in the cetacean order. Two species were described as recently as 1991 (pygmy beaked whale) and 2002 (Perrin's beaked