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Galapagos sea lions swimming in Baronesa Bay

© Antonio Busiello / WWF-US

Sea lions

Sea lions haul out in large colonies on rocks and sandy shores on the Islands. They move into the water to feed and cool off as needed.

Sea lion facts

Scientific name
Zalophus wollebaeki
Weight
About 400 lbs.
Length
6 ft.
Habitats
Oceans

Why sea lions matter

A sea lion pup with eyes closed

© WWF-Japan/Ozaki Haruko / WWF-Canon

The sea lion is the most common mammal in the Galápagos.

Threats to sea lions

Many sea lions gathered on a large rock

© Angela Carpinacci Francesco Lupi / WWF-Italy

Introduced species, such as dogs, carry diseases that can spread to sea lions. They are vulnerable to the effects of climate change on ocean currents, which impacts their fish prey abundance. They are also victims of bycatch in fisheries.

How WWF is working to protect sea lions

Sea lions gathered on a sandy beach near blue ocean

© Martin Harvey / WWF-Canon

Sea lions often rest aboard fishing boats, sometimes causing the boats to sink. Fishers try to prevent them from coming aboard by putting up barbed wire as a barrier, but this causes severe injuries to the sea lions. WWF helped support a project on San Cristóbal Island that built and installed two floating bases for sea lions to rest on and a “primary care nursery” for sea lions and other species. Environmental education and communication awareness sessions were offered about the importance of sea lions and the problems with their interaction with the local community. Currently, sea lions are using the floating bases more often, and we expect fewer sea lion injuries and fewer troubles for the boat owners on the island.

How you can help

Tiger adoption kit with a plush, reusable bag, and adoption certificate

© WWF-US OGC

Symbolic species adoptions

Support WWF’s global efforts to protect wild animals and their habitats and choose from kits with plush and more.

Adopt today