Getting to Know False Killer Whales

Among the 18 species of whales and dolphins in Hawaii, the false killer whale is one of the most endangered. In 2012, the NOAA recognized a population of only 150 individuals inhabiting Hawaiian waters.Perhaps this is exactly the reason why, the dwindling population of these rare sea mammals, sparks our curiosity to understand them better.

Similarities and differences between the false killer whale and the true killer whale

Although classified as oceanic dolphins, false killer whales derive their name from the Orca, the “true” killer whales, with which they share a large number of characteristics, including their charcoal black appearance.Both species mature late with females becoming reproductively active at around the age of 10 years and males at about the age of 18 years! They only calve once in 6 to 7 years, and females experience menopause. On rare occasions it has been known for a false killer whale to mate with a bottlenose dolphin giving rise to a new species called the Wholphin.Of the oceanic dolphins, the pseudo orcas are regarded to be the third largest in size.

Killer whales, both “true” and “false”, are the only recognized cetaceans that actively hunt other marine mammals. But unlike the true killer whale, the false killer whale rarely attacks mammalian prey preferring to feed primarily on tuna, ono, mahimahi, swordfish and marine birds. In fact there have been intermittent observations of true orca preying on false killer whales.

Communication and Social Habits

Despite being a species that is widely distributed throughout tropical and temperate regions across the world, very little is known about the pseudo orca in comparison to other dolphin species. Information regarding this species has mostly been accumulated from observations of stranded dolphins in and around coastlines worldwide.

False killer whales are recognized as social and playful creatures. They tend to live and travel in large aggregations that extend to several miles. This also increases their success in hunting prey. Communication involves high pitched clicks and whistles. Like other dolphin species, echolocation is used to help navigate dark waters and locate prey or other members in their pod. Pseudo orcas have also been observed to share food and support one another in case of injuries.

Precautions

Friendly and curious by nature, false killer whales do not hesitate to approach people. In fact, on occasion they have been known to offer fish to humans, snorkeling,sailing or scuba diving.  Nevertheless it is advised that people stay cautious and keep a distance from pseudo orcas in the wild. The safest way to observe these majestic sea creatures is by hiring a private charter to take you to areas most frequented by dolphins and whales.

Multiple populations of dolphins and whales have been regularly documented within Hawaiian waters by marine biologists. These cetaceans either reside in the temperate waters of Hawaii or are temporarily visiting while they journey around the globe. However, it must be remembered that sighting false killer whales cannot be guaranteed a hundred percent even in the pleasant clear waters of Hawaii.