At least 18% of gray whales documented in San Francisco Bay between 2018 and 2025 later died there. Ship strikes are the leading cause and the population isn’t rebounding as it once did.
Two marine biologists explain why this isn’t normal:
https://theconversation.com/gray-whales-are-dying-in-san-francisco-bay-at-an-alarming-rate-this-isnt-normal-280151
