Depends on what they're doing.
If they're hunting in a Group, they do synchronize their breathing to fit their other movements
When travelling, there are also benefits from swimming in synch - a bit like drafting on a bike - so they'll do a bit of breath synching too.
If they're not doing anything special, they'll Breathe as they please.
No, killer whales, also known as orca, are porpoises and breathe air and are thus mammals.
Yes, killer whales live in groups called pods
They breathe through the blow hole on the top of their heads
Killer whales - Orcas - yes. Salmon - no. Salmon is a fish, fish use gills.
Pods
No, they eat fish and mammals. They usually hunt in groups called pods.
Orca Whales, also known the Killer Whales, hunt in small groups which are called "pods".
Killer whales travel in packs like wolves and share many of the same hunting strategies.
Orcas - killer whales don't Breathe under water. They are mammals and Breathe air with lungs. They hold their breath when diving.
killer whales
Killer whales like to always be by themselves. Killer whales are very social creatures, they live in family groups called pods.
Orca Whales some people might known them as Killer Whales. The Killer Whales or The Orca Whales hunt in groups called "Pods".