Rorquals

The paper suggested the molecular mechanisms of rorquals seem to give them cancer resistance.

Its head's ventral surface lacks the numerous prominent furrows of the related rorquals, instead bearing two to five shallow furrows on the throat's underside.

Some rorquals can dive for up to 40 minutes, sperm whales between 60 and 90 minutes and bottlenose whales for two hours.