Deeper Dive Archives | Wild Orca

J32 a pregnant Southern Resident killer whale breaching.

March 20, 2023

Endangered orca calves exposed to contaminants even before birth

J57 swims alongside mother J35.

February 16, 2023

The Cost of Motherhood for Endangered Orcas

J 42 swims in front of a large vessel.

January 25, 2023

Shipping slowdown reduces noise levels for endangered orcas

A small suction cup tag attached to an orca.

December 29, 2022

Vessel noise interrupts prey-hunting orcas, especially females

2 Orcas swimming beneath the surface.

November 21, 2022

Prey shortage indicated by changes to orcas’ body condition

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

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