
Without a Porpoise: Transient Orcas Hunt Harbor Porpoises in Haro Strait
A new paper has come out indicating that Orcas’ evolution has been partially driven by culture. There are ten ecotypes worldwide. They each have different prey, look a little bit different, but most importantly their behavior differs between each ecotype as well. This stems from the fact that many of their behaviors are learned behaviors including hunting methods, communication, and socialization activities. The distinct ecotypes have developed different forms of a lot of these...