Gray Whale | Oceana
Home / Gray Whale

Marine Life Encyclopedia

Marine Mammals

Gray Whale

Eschrichtius Robustus

Distribution

Sub-tropical to polar latitudes of the north Pacific Ocean

ECOSYSTEM/HABITAT

Coastal

FEEDING HABITS

Suction feeder (see text)

TAXONOMY

Suborder Mysticeti (baleen whales), Family Eschrichtiidae (gray whales)

Though they are quite large (up to 46 feet/14 m), gray whales feed on small benthic worms and other invertebrates. Through a unique feeding strategy known as suction feeding, gray whales bite off huge mouthfuls of soft sediments (sand or mud) from the seafloor and then constrict the muscles of their mouths and throats to force out the water and sand, filtering out the food with their baleen. This feeding strategy is analogous to the filter feeding of the other large, baleen whales. These whales are known to undergo very long migrations between feeding grounds near the poles and calving grounds in well-protected lagoons in the sub-tropics. Unlike the other great whales, though, gray whales feed along the way.

Like all whales, gray whales are mammals and give live birth to large calves. Because the female is responsible for providing milk for and protecting its babies, she must store extra energy reserves and is consequentially larger than males. All of the record gray whales (by size) are females. Gray whale mothers are known for being particularly protective of their young and have been known to attack boats that threaten their babies. Calves, on the other hand, are quite curious and are known to approach and investigate boats. These differing behaviors can present potential conflict for whale watching operations. The killer whale is the only species known to attack and eat gray whales (always juveniles).

Commercial whaling during the 17th-20th centuries (and perhaps even earlier) had an extremely detrimental affect on gray whale populations. Numbers were reduced so significantly that the north Atlantic population is now extinct, and the north Pacific population nearly went extinct in the 20th century. Fortunately, with complete legal protection in the United States and Mexico, the eastern Pacific Ocean population has recovered to about 20% of its pre-whaling numbers and is now stable. The western Pacific Ocean population is still at risk of extinction and was thought to be lost until being rediscovered in the 1980s. The recovery and continuing protection in the eastern Pacific, however, means that the species as a whole is now considered of least concern. Successful management and careful protection has saved this species from the brink of being lost.

Engage Youth with Sailors for the Sea

Oceana joined forces with Sailors for the Sea, an ocean conservation organization dedicated to educating and engaging the world’s boating community. Sailors for the Sea developed the KELP (Kids Environmental Lesson Plans) program to create the next generation of ocean stewards. Click here or below to download hands-on marine science activities for kids.

Kids Environmental Lesson Plans

Additional Resources:

IUCN Red List

NOAA Fisheries

Get Involved

Donate Today

SUPPORT OUR WORK TO PROTECT THE OCEANS BY GIVING TODAY

With the support of more than 1 million activists like you, we have already protected nearly 4 million square miles of ocean.

Donate Now

TAKE ACTION NOW

Support policy change for the oceans

Decision-makers need to hear from ocean lovers like you. Make your voice heard!

Sign Now

VISIT OUR ADOPTION CENTER

SYMBOLICALLY ADOPT AN ANIMAL TODAY

Visit our online store to see all the ocean animals you can symbolically adopt, either for yourself or as a gift for someone else.

Shop Today

DOWNLOAD OCEAN ACTIVITIES

HELP KIDS DISCOVER OUR BLUE PLANET

Our free KELP (Kids Environmental Lesson Plans) empower children to learn about and protect our oceans!

Learn More

FEATURED CAMPAIGN

Save the Oceans, Feed the World

We are restoring the world’s wild fish populations to serve as a sustainable source of protein for people.

Learn More

More Campaigns

Protect Habitat

Bycatch

Plastics

View All

CONTACT

Oceana International Headquarters
1025 Connecticut Avenue, Suite 200
Washington, DC 20036 USA

General Inquiries
+1(202)-833-3900
info@oceana.org

Donation Inquiries
+1(202)-996-7174
wavemaker@oceana.org

Press Inquiries
+1(202)-833-3900
press@oceana.org

OCEANA'S EFFICIENCY

BECOME A WAVEMAKER

Sign up today to get weekly updates and action alerts from Oceana.

SHOW YOUR SUPPORT WITH A DONATION

We have already protected nearly 4 million square miles of ocean and innumerable sea life - but there is still more to be done.

Donate Now

QUICK LINKS: