For the last five years, killer whales have been ramming – and in some cases sinking – expensive yachts, fishing boats, and motorboats in the crystalline waters off the coast of Spain, Portugal, France, and Morocco. The reason for this behavior had been a mystery – until recently. A multinational group of orca experts, sponsored by the governments of Spain and Portugal, met … [Read more...] about Killer whales keep ramming and sinking boats. Scientists now may know why, report says