why are orcas called killer whales

Orcas are called "killer whales" because ancient sailors observed them hunting large whales and other marine animals with impressive skill. These sailors originally referred to them as "whale killers," a term that later evolved into "killer whales." The name reflects their role as apex predators with powerful hunting abilities, as they work in pods using smart strategies to catch prey including fish, seals, and other whales. The orca's scientific Latin name, Orcinus orca, also reflects this reputation, with "Orcinus" relating to the Roman god of death and the underworld. Despite their fearsome nickname, orcas are actually the largest members of the dolphin family and no documented cases exist of wild orcas killing humans. The term "killer whale" therefore highlights their top position in the marine food chain and their hunting prowess rather than actual danger to humans.