Gray whales are great travellers. The large mammals make a 12,500 mile roundtrip journey from Alaska to Mexico every year. For this reason, it is not surprising the pods will have encounters with other marine life.
Marine biologist, Melissa Galieti of Monterey Bay Whale Watch posted a video of gray whales sharing the ocean waters with bottlenose dolphins. It is common to see the two species swim near each other. The bottlenose dolphins live in the central California region, specially the Monterey Bay year-round.
The abundance of food in this area also makes it a popular hangout. Monterey Bay area has one of the highest congregation of marine mammals in the world with up to 26 water mammals being observed at any given time.