"Orcas are adopting terrifying new behaviors. Are they getting smarter?
From sinking boats and feasting on shark livers to dining on whale tongue and tossing porpoises around for fun, orcas are displaying some fascinating — and sometimes terrifying — behaviors.
"These are animals with an incredibly complex and highly evolved brain," Deborah Giles, an orca researcher at the University of Washington and the nonprofit Wild Orca, told Live Science. 'They've got parts of their brain that are associated with memory and emotion that are significantly more developed than even in the human brain.'
But the scale and novelty of recent attacks have raised a question: Are orcas getting smarter? And if so, what's driving this shift?"
