Their colors help them blend in with the surrounding water while following potential prey. They can dive deep into the water beyond 10 minutes.They have a higher concentration of myoglobin, which allows, also, their muscles to go longer without oxygen. They have the ability to slow down their heart rate. This helps decrease the demand of oxygen, but it also stresses their body. Blubber helps the killer whale conserve heat.
Morphology: The orca is the most distinctive out of all the cetaceans. This bilateral dolphin has a well known white and black body. They have broad round heads and snout with enlarged paddle-like pectoral fins and a large dorsal fin.