Killer whales are mammals and have two internal lungs. They are not fish, and therefore have no gills.
All whales have lungs. No whale has gills. The whale Shark has gills, but that name comes from it being a Shark - a fish - the size of a whale.
Whales breathe with lungs, and fish use gills.
Whales
Dolphins and whales are mammals so they don't have gills.
No. Just lungs.
Whales have lungs, as they are mammals, and fish use gills to breath.
Whales have lungs. They descended from land animals with lungs. They had lungs before they became creatures living full time in the ocean. They did not develop either gills or lungs after they became sea creatures but long before.
yes
They can't. Dolphins and Whales have lungs, not gills. they have to Surface to Breathe. They hold their breath while diving.
Only whales have lungs .No other fish has lungs they have gills.
No, they do not need there gills because they have air tubes which are connected to their lungs.