42-year-old San Francisco Zoo grey seal dies

Just days after Gene, a 41-year-old rhino, passed away, the San Francisco Zoo is now mourning the loss of Orkney, a 42-year-old Atlantic grey seal.

Orkney arrived at the zoo in 1970 and was considered to be the oldest grey seal living in any North American Association of Zoos and Aquariums' captive populations.

Earlier this week Orkney became weak and lethargic, developed breathing issues, and was put to sleep Friday morning.