The story of the southern resident J-pod orcas, and the mother mourning her dead calf, has drawn attention from around the world.

Now, one of the other calves in the same pod is starving, and the U.S. National Oceanic and Atmospheric Administration is working with Fisheries and Oceans Canada on a plan to save it.

J-50 is a four-year-old orca who is showing signs of malnourishment and lethargy, according to Michael Milstein, a public affairs officer with NOAA, who has been following the pod closely since the news of the calf’s death.

There are 75 endangered southern resident killer whales remaining