Deeper Dive Archives | Wild Orca

2 Southern Resident killer whales swiming side by side.

October 28, 2022

Salmon scarcity, not timing, explains absent orcas

A group Chinook salmon smolts swimming in clear water.

July 19, 2022

Fewer, smaller Chinook salmon in the Salish Sea provide less calories to endangered orcas

A Southern Resident killer whale surfaces in choppy water in the Strait of Juan de Fuca.

June 15, 2022

Hormone levels indicate stress levels of endangered orcas

3 Southern Resident killer whales porpoise through the water.

May 26, 2022

Scientists’ model turns clock back, then forward to understand human impacts on orcas

4 Southern Resident killer whales surface near a recreational boat.

April 13, 2022

An increase in vessel distance reduces endangered orcas’ exposure to harmful emissions

a group of Southern Resident killer whales swimming tightly together.

April 4, 2022

Why a Strong Social Network Improves Survival Rates of Male Southern Resident Killer Whales

A group of Southern Resident killer whales swimming with a calf.

March 25, 2022

Prey Scarcity Increases Pollutant Levels, and Their Effects, in Southern Resident Killer Whales

A Southern Resident killer whale spyhopping.

February 19, 2022

How Much More Evidence Does NOAA Fisheries Need to Save Southern Resident Killer Whales?

An aerial view of the Fraser River.

January 12, 2022

Fraser River Salmon Face Multiple Threats in Both Their Freshwater and Marine Habitats

A Southern Resident killer whale calf with its head above the surface.

December 27, 2021

Why are so Few Babies Born in the Southern Resident Killer Whale Community?

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