Since it’s a trend it comes and goes, and the behavior spreads in a manner similar to fashion trends. Google pics for it, can you think of any other reason for

Since it’s a trend it comes and goes, and the behavior spreads in a manner similar to fashion trends. Google pics for it, can you think of any other reason for an orca to wear a salmon on their head. Song birds also have similar fashions in what they choose to sing and that spreads much faster than evolution can explain.