IUCN SSC

Otter Specialist Group

Leading global otter conservation since 1974

The Otter Specialist Group (OSG) is part of the Species Survival Commission (SSC) of the International Union for Conservation of Nature (IUCN).

14 Otter Species
50 Years of Experience
+250 Members

We are passionate about Otters

“Otters are truly extraordinary. I challenge anyone to watch a group of them for more than ten minutes without becoming captivated—often for life. What makes them so fascinating? In reality, they are fierce aquatic predators and skilled fighters when necessary, far from being merely cute or cuddly. Yet, a short-clawed otter can spend hours playing with a pebble, effortlessly tossing it from hand to hand. North American otters gallop and slide across the snow, joyfully chasing one another. Giant otters build lifelong bonds with their family members. Sea otters use tools and even hold on to each other while floating, so they don’t drift apart in the ocean.”

Aonyx cinereus by Nicole Duplaix

About us

The OSG collaborates closely with various groups worldwide that share its values and mission to conserve otters and their habitats. These networks, operating under the IUCN umbrella, align with its goals and combine efforts in research, education, communication, and policy to safeguard otters and their ecosystems.

The IUCN SSC OSG is the global Red List and Green Status Authority for the extant 14 species of Otter.

Lutra lutra by Nicole Duplaix

Otters are key to keeping freshwater ecosystems healthy and thriving

The OSG develops and promotes a wide range of resources for research, species and conservation management, and education. From key documents such as global strategies, manifestos, and action plans to a video library and even  colouring books, this website offers a variety of specialized resources to support your work in otter conservation.

Pteronura brasiliensis by Patrick Cech

Do you want to learn more?

The OSG develops and promotes a wide range of resources for research, species and conservation management, and education. From key documents such as global strategies, manifestos, and action plans to a video library and even colouring books, this website offers a variety of specialized resources to support your work in otter conservation.