The blue whale also incidentally consumes small fish, crustaceans and squid caught up with krill. Retrieved 8 December Females give birth every four to twenty years, and care for the calves for more than a decade. Indo-Pacific humpbacked dolphin S. Though a widely practised art in the nineteenth century, scrimshaw using genuine sperm whale ivory declined substantially after the retirement of the whaling fleets in the s. Wikispecies has information related to Physeter macrocephalus.
Johns Hopkins University Press.
Mammal Species of the World: Southern right whale E. The Whaling Expedition of the Ulysses, —38p. Even after the first specimens were described, the blue whale went by many names and scientists often described their specimens as new species. Blue whales most commonly live alone or with one other individual.