Whales
Whales are among the largest and oldest animals on Earth. They can be found in every ocean and range in size from the small dwarf sperm whale to the massive blue whale, the largest animal on the planet. Whales belong to a group of marine mammals called cetaceans. Marine mammals in the cetacean family include whales, dolphins, and porpoises.
There are two types of cetaceans: baleen and toothed. Baleen whales, or Mysticetes, have baleen plates which sieve prey, like krill, from the water. Toothed whales, or Odontocetes, have teeth and feed on fish, squid, and other marine mammals such as seals and sea lions.
Together with our partners, we work to ensure the conservation of whales which are all protected under the Marine Mammal Protection Act, and protect and recover those that are listed under the Endangered Species Act.
Species News
Multimedia
Listening for Whales: Using Passive Acoustic Monitoring to Track North Atlantic Right Whales
Research
False Killer Whales and Fisheries in Hawaiian Waters: Evidence From Mouthline and Dorsal Fin Injuries Reveal Ongoing and Repeated Interactions
Results suggest that efforts to reduce bycatch and begin monitoring of fisheries that overlap the…
Population Size Estimate for North Atlantic Right Whales
Population size estimation of North Atlantic right whales from 1990-2023.
Monitoring Endangered North Atlantic Right Whales in Near Real-Time by Sound, Air, and Sea
NOAA Fisheries uses the latest technologies, such as passive acoustic monitoring, to detect endangered North Atlantic right whales in near real-time and support the species’ recovery.
Understanding Marine Mammal Protections
Learn how NOAA Fisheries protects all marine mammals under the Marine Mammal Protection Act.