Answer: By living an inactive life
Explanation:The dwarf sperm whales are a family of whales that live in warm continental shelfs, this whales like warm water bodies as can be seen in the tropics. They feed on fish, crustaceans and Octopus etc. The dwarf sperm whales contains a spermaceti oil which has been seen as a good lubricant.
The dwarf sperm whales protect themselves from their predators by making themselves appear inactive,this cause their predators to consider them as dear and very difficult to locate.