LifeDolphins who are hand-fed by tourists are less social than their peers Tourists can hand-feed some dolphins around the coast of Australia, but dolphins fed this way are less likely to form strong social bonds with their peers News
LifeFossil hints that orcas don’t have a long history of killing whales A 1.4-million-year-old fossil relative of killer whales had teeth that suggest it ate small fish rather than large marine mammals News