The contrast of the huge orca hanging out in the middle of a pod of dolphins was indeed a beautiful sight, and everyone aboard the boat felt incredibly lucky to have accidentally happened upon the unlikely friends. This occurrence wasn’t just a fluke, though. There’s actually a reason the dolphins were traveling alongside the orca, and it probably isn’t what you’d think.
There are a few different types of orcas, including resident and transient orcas. While transient orcas feed on other marine mammals, resident orcas eat only fish. The dolphins swimming alongside the boat knew that the orca was a resident orca — and therefore completely safe to travel with.