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On the shores of the Salish Sea, 
just south of Seattle, a quiet but 
extraordinary operation is saving 
marine wildlife lives in the Pacific 
Northwest. The Sealife Response, 
Rehabilitation, and Research 
(SR3) organization operates the 
region’s first—and still only—
dedicated marine mammal hospital, 
a 14,000-square-foot facility 
purpose-built to care for animals 
that have nowhere else to go.
When Executive Director Casey 
Mclean moved to Washington, she 
was stunned to discover that a region 
so defined by its marine life lacked 
a hospital for its ocean residents. 
“People assumed it was being done 
already,” she recalls. “It made me 
mad that it wasn’t happening.” 
A veterinary technician by 
training, Mclean did something 
about it in 2016, She formed SR3 
and began and began treating 
injured animals--sometimes taking 
them via ambulance all the way to 
California for treatment, The group 
also responded to entangled whales 
Healing the Salish Sea: Inside 
SR3’s Marine Animal Hospital
and filling critical gaps in killer 
whale research. In 2021, after years 
of planning and persistence, SR3 
opened the doors to its hospital.
Today, the hospital is one of only 
32 marine mammal rehabilitation 
centers in the United States, and 
the only one serving the Pacific 
Northwest. Inside, veterinary teams 
treat between 60 and 100 patients 
annually. The most common arrivals 
are harbor seal pups—sometimes 
just hours old—suffering from 
injuries caused by dog attacks, boat 
strikes, or simple separation from 
their mothers. Other patients reveal 
a deeper, more systemic problem: 
cancers and illnesses linked to 
toxins in the marine ecosystem.
SR3’s work extends into the open 
ocean. Teams respond to entangled 
whales—gray whales and humpbacks 
caught in crab gear. Using drones, 
researchers also monitor whale 
health from above, assessing body 
condition and calf development. This 
data has already informed policy, 
including updated viewing distance 
guidelines designed 
to better protect 
the endangered 
Southern Resident 
killer whales.
Community 
support for SR3 is 
essential, especially 
as funding challenges grow. In 2025 
alone, the organization lost $150,000 
in federal grants, underscoring the 
fragility of conservation work at 
a time when protections like the 
Marine Mammal Protection Act face 
increasing uncertainty.
Maritime industry leaders like 
Meredith Tall—founder of the 
Victoria Clipper and a founding SR3 
board member—bring important 
perspective. “It’s valuable to have 
her insight into how humans 
can co-exist with marine life,” 
Mclean observes, highlighting the 
importance of collaboration between 
conservationists and the industries 
that share the same waters.
Mclean notes that there are simple 
ways to help local sea life. Keep 
Learn more about 
SR3 and support 
their work
Aerial image of a social group of “Sounders” gray whale taken in April 2021. Image was collected non-
invasively using a remotely-controlled drone flown at >150ft over the whales under NMFS research permit 
#22306. Photo by Holly Fearnbach (SR3) and John Durban (Oregon State University).
SR3 has a highly skilled and federally certified response team to help address the increasing problem of 
entanglement in trash and fishing gear. In this image, the team is disentangling a humpback whale. 

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