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Estimating the Age of Endangered Southern Resident Killer Whales Using an Epigenetic Clock

A new molecular technique, known as an epigenetic clock, can help us understand killer whales’ population size, age structure, and reproductive rates. Southern Resident Connections - Post 31
April 07, 2023 - Feature Story ,
Killer whales at sea. Photo shows two killer whales surfacing.

Inbreeding: A Conservation Challenge for Iconic Killer Whales

New genome sequencing reveals the reason behind Southern Resident killer whales' failure to thrive.
March 30, 2023 - Podcast ,
A black and white Southern Resident killer whale leaping out of the water. The fin of another whale is visible and a boat and mountains are in the background.

Long Isolated Killer Whales Maintain Small Population Spanning Oceans

Recently recognized “type-D” killer whales are nearly identical from New Zealand to Chile.
March 30, 2023 - Feature Story ,

Inbreeding Contributes to Decline of Endangered Killer Whales

New genome sequencing shows Southern Residents are highly inbred. Southern Resident Connections - Post 30
March 20, 2023 - Feature Story ,
An adult orca is swimming underwater, and a calf is next to its dorsal fin. The calf is surfacing from the water. Southern Resident killer whale with calf

SeaWorld San Antonio Celebrates Tyonek’s 5-Year Anniversary at the Park

The success story behind the rehabilitation of the abandoned baby beluga rescued in 2017 involved several agencies and a 4,000-mile journey.
March 08, 2023 - Feature Story ,
SeaWorld staffer tending to Tyonek. SeaWorld staffer tending to Tyonek. NOAA Fisheries ESA/MMPA Permit No. 18786-02. Credit: SeaWorld San Antonio.

Frequent Questions—Necropsies (Animal Autopsies) of Marine Mammals

Frequently asked questions about the process of investigating marine mammal strandings involving dead animals.
February 24, 2023 - Feature Story ,
Humpback whale necropsy on February 8, 2023 Humpback whale necropsy on February 8, 2023. Credit: Virginia Aquarium & Marine Science Center (NOAA Permit #24359).

50 Years of Protecting Marine Mammals

A look at the Marine Mammal Protection Act's many advancements and accomplishments in the last 50 years.
February 02, 2023 - Podcast ,
Pair of bottlenose dolphins Pair of bottlenose dolphins. Credit: NOAA Pacific Islands Fisheries Science Center/Lisa Morse.

Coordinated Response Protected Southern Residents From Sunken Ship Leaking Oil

NOAA Fisheries and partners diverted endangered whales from potential harm and learned lessons along the way. Southern Resident Connections - Post 27
January 27, 2023 - Feature Story ,
Aerial view of oil sheen on water next to island