Boaters in the Straits of Gibraltar have reported being rammed repeatedly by orcas, causing damage to hulls and rudders. The behavior suggests stress among the whales, says Rocio Espada at the University of Seville's marine biology laboratory, and heavy boat traffic, conflicts with fishermen and declining bluefin tuna populations are possible contributors.
Sign up for Animal Health SmartBrief
News for animal health professionals
Get the intelligence you need: news and information that is changing your industry today, hand-curated by our professional editors from thousands of sources and delivered straight to your inbox.