Predatory black-and-white toothed whale with large dorsal fin; common in cold seas.

synonyms: killer, killer whale, orca, Orcinus orca, sea wolf.

Dutch: orka
Polish: miecznik, orka

Slaty-grey blunt-nosed dolphin common in northern seas.

synonym: Grampus griseus.

Dutch: orka
Polish: delfin szary, delfin Risso