Since February, marine rescue centers have been overwhelmed responding to sea lions, dolphins and birds found sick and dying on local beaches.

Restoration for the Los Angeles River has been underway for several decades, but the recent wildfires and drier climate could put progress in jeopardy.

A minke whale — appearing healthy — had been swimming in Long Beach’s Rainbow Harbor and later washed up on the shore of the Los Angeles River in early April. (Photo courtesy of PMMC ...