Odd couple: Orcas and dolphins hang out off B.C. coast

 VANCOUVER - Drone flights have uncovered an odd couple of the deeps. 

Researchers from the Vancouver Aquarium have delivered video of dolphins staying nearby units of executioner whales, two species that are typically more like hunters and prey than Felix and Oscar. 

"At the point when I saw it from above, I understood how personal that affiliation is," said researcher Lance Barrett-Lennard. "Dolphins are in a real sense directly on top of the executioner whales and right on their heads." 

Executioner whales off the British Columbia coast by and large fall into two gatherings, said Barrett-Lennard. 

One gathering comprises of inhabitant whales. The other is comprised of homeless people, otherwise called Biggs whales, which were named after the late marine warm blooded animal expert Michael Bigg who originally recognized them in the north Pacific during the 1970s. 

The occupant whales, full up on salmon and other fish, don't eat dolphins. The transient whales most decidedly do. 

"They eat only marine well evolved creatures," Barrett-Lennard said. "Dolphins are unquestionably on the menu - indeed, very high on the menu." 

The two whale bunches look nearly the equivalent yet solid very extraordinary. 

Biggs whales will in general be tranquil and serene, as befits trackers following prey. The occupants are definitely not. 

"Occupant executioner whales swim around expressing a great deal, uproariously and prominently," said Barrett-Lennard.  Whale Watching Vancouver

The two gatherings of whales have little to do with one another. Barrett-Lennard feels that clarifies the presence of the dolphins, who've discovered that in the event that they're around inhabitant whales, the Biggs are elsewhere. 

"Once in a while a little gathering of dolphins will get before a gathering of (inhabitant) executioner whales and it will nearly seem as though you're out strolling your terrier and the canine's out ahead." 

Dolphins have just gotten basic off B.C. since the mid-1980s and when they previously showed up, they stayed away from all executioner whales. By the mid '90s, researchers were beginning to see dolphins close to units of occupant whales. 

However, it wasn't until scientists as of late began utilizing robots to notice the creatures that they understood how close the affiliation was. 

"Watching this from a boat, I hadn't valued the reality the dolphins get directly before the whales," Barrett-Lennard said. "It's astonishing what the dolphins pull off." 

Porpoises, an amphibian well evolved creature firmly identified with dolphins, do something very similar. 

Occupant whales don't appear to be too energetic about the presence of their more modest cousins, who might be meddling with their fishing. Barrett-Lennard said a whale will now and then fold an accident or swipe a tail for all the world like a forget about. 

"In some cases, if an enormous gathering - at least 100 dolphins - approaches a little gathering of executioner whales, regularly the whales will jump and remain down for more than expected and afterward come up some distance away. You get the solid sense they're attempting to shake the dolphins." 

Furthermore, imagine a scenario in which the inhabitant whales concoct their own knowledge and understand that dolphins are delicious. Improbable, Barrett-Lennard said. 

There's a lot of food in the ocean for the two gatherings of orcas to coincide, he recommended, yet in the event that one began to poach different's dinners, the outcomes could be untidy. 

"It would need to manage this issue of rivalry. These are imposing creatures with enormous teeth, so you could envision that opposition would be pretty perilous." 

In this way, Barrett-Lennard closes, the inhabitant dolphins remain alive by following alongside a monster that, wherever else, is their greatest hunter. 

"At the point when they're spending time with inhabitants, they're protected."