April 25: More dead marine mammals wash ashore in Ventura County – KTLA
April 22: Stranding Team Responds to More Than a Dozen Dead or Dying San Diego Dolphins in a Single Day – NOAA
April 9: 2025 HAB Update Flyer – SCCOOS
April 1: California’s sea lions aren’t really ‘demonic’—they’ve been poisoned – National Geographic