Killer whales - Orcas - yes.
Salmon - no. Salmon is a fish, fish use gills.
They breathe through the blow hole on the top of their heads
Whales can't Breathe through their mouths, only their blowholes
They come up to the surface every few minutes to breathe through their blowhole.
No, killer whales, also known as orca, are porpoises and breathe air and are thus mammals.
Whales Breathe through a blowhole, a modified nostril at the top of their head.
There are Arctic salmon, walruses, seals, killer whales, etc.
Orcas will eat seals, and seals are mammals.
Killer whales are aquatic mammals, they breathe through a single blow hole, which can be found on top of their heads. Like all mammals they have lungs, unlike fish which use gills to extract dissolved oxygen from water.
Whales don't need to breathe through their mouths. Instead, they breathe through their blowholes on top of their heads, like the dolphins and porpoises.
They are all on the diet of killer whales.
Whales breathe in and out of their blowhole. They are unable to breathe through their mouth because the trachea is not attached to the throat.
Orcas - killer whales don't Breathe under water. They are mammals and Breathe air with lungs. They hold their breath when diving.