Quick answer
The orca, or killer whale, is the largest member of the dolphin family and an apex predator found in every ocean on Earth. Highly intelligent and social, orcas hunt in coordinated family groups called pods and can weigh up to 6,000 kg (13,000 lb). Wild orcas can live 50 to 80 years or more.
Key takeaway
The orca, or killer whale, is the largest member of the dolphin family and an apex predator found in every ocean on Earth. Highly intelligent and social, orcas hunt in coordinated family groups called pods and can weigh up to 6,000 kg (13,000 lb). Wild orcas can live 50 to 80 years or more.
Overview
The orca, or killer whale, is the largest member of the dolphin family and an apex predator found in every ocean on Earth. Highly intelligent and social, orcas hunt in coordinated family groups called pods and can weigh up to 6,000 kg (13,000 lb). Wild orcas can live 50 to 80 years or more.
Biology
Orca (Orcinus orca) is classified as Mammal with conservation status Data Deficient. Typical weight Up to 6,000 kg (13,000 lb); lifespan around 50–80+ years in the wild.
Ecology
Diet: Carnivore. Habitat: All oceans, from polar to tropical. Movement and social systems reflect those pressures.
People and this species
Learn before you travel or keep related pets. Wild individuals are not toys; captive care needs species-specific husbandry.
Further reading
See the full Orca profile for FAQs, taxonomy, and related guides on this site.
Intelligence and family pods
Orcas are among the most intelligent animals in the ocean. They live in tight family groups called pods, led by the oldest females, and stay with their mothers for life. Different pods have their own dialects of calls, distinct hunting techniques, and even food preferences, a form of culture passed down through generations.
Apex hunters
As apex predators, orcas have no natural enemies. Depending on the population, they hunt fish, seals, sea lions, penguins, sharks, and even other whales. They use remarkable cooperative strategies, such as creating waves to wash seals off ice floes and beaching themselves briefly to grab prey at the shoreline.
Built for the open ocean
The orca's powerful tail can drive it through the water at up to 56 km/h, making it one of the fastest marine mammals. Its distinctive black-and-white coloring helps break up its outline while hunting, and its tall dorsal fin, reaching up to 1.8 m in males, makes it instantly recognizable.
Conservation
The IUCN currently lists the orca as Data Deficient because the species spans many distinct populations with very different levels of risk. Some local populations are healthy while others are threatened by pollution, declining prey, noise, and disturbance, so conservation is managed population by population.
Research notes
Figures for orcas (Orcinus orca) come from field studies, museum records, and conservation assessments that do not always agree on exact averages. Prefer ranges over single-point claims, and check whether a source describes wild, captive, or mixed populations.
Practical takeaways
If you encounter orcas in the wild, prioritise distance and local guidance. If you care for related domestic or captive animals, match diet and housing to species needs rather than generic pet advice. Share accurate status information (Data Deficient) when discussing conservation.
Sources
FAQs
Orca: Key Facts & Natural History?
The orca, or killer whale, is the largest member of the dolphin family and an apex predator found in every ocean on Earth. Highly intelligent and social, orcas hunt in coordinated family groups called pods and can weigh up to 6,000 kg (13,000 lb). Wild orcas can live 50 to 80 years or more.
What is the scientific name of the orca?
Orcinus orca
What do orcas eat?
Carnivore
Where do orcas live?
All oceans, from polar to tropical
Are orcas endangered?
Listed here as Data Deficient. Check IUCN and national lists for the latest assessment.