Orcas Revive 37-Year-Old Dead Salmon Hat Trend

Orcas in the Northwest Pacific have revived a peculiar behavior from the 1980s, wearing dead salmon on their heads, a trend not seen since 1987. Researchers are unsure why this behavior has resurfaced, but speculate it may be linked to high food availability, as the region is currently abundant with chum salmon. This behavior, considered a "fad," may involve orcas saving food for later. The use of drones could provide new insights into this phenomenon, though the exact motivation remains a mystery.