Northern Right Whale Dolphin (Lissodelphis borealis) lives in open ocean across North Pacific Ocean. It feeds on squid and fish. Its conservation status is Least Concern.
Fascinating facts about the Northern Right Whale Dolphin
- Their brain-to-body ratio tops almost every animal on Earth, with an encephalization quotient of 5.55, only humans score higher. This suggests extraordinary cognitive abilities, likely supporting complex social structures, and the rare loss of whistling in favor of click-based communication, a trait that may help them evade predators and coordinate in huge pods.
- They zip through the sea at 26 km/h on average and can sprint up to 40 km/h, leaping 7 m out of the water in a single bound. When hunting, they dive to 200 m (660 ft) and can stay submerged for over six minutes, allowing them to chase deep-dwelling lanternfish and squid that many surface predators miss.
- In the 1980s drift-net fisheries snagged up to 24,000 dolphins a year, slashing the regional stock by as much as three-quarters. Later estimates of 15,000-20,000 deaths per year (1985-1990) suggest the pre-exploitation population may have been cut by 24-73%, highlighting how industrial fishing once drove this once abundant species to the brink.
- No dorsal fin makes them look like sleek torpedoes, a trait no other North Pacific dolphin shares. Their smooth backs let them cut through water with minimal drag, giving them a streamlined silhouette.
- Superpods can swell to the size of a small town: observers have counted up to 3,000 individuals together, while typical groups range from 110 in the eastern Pacific to 200 in the west.
Sources
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At a glance
RangeNorth Pacific Ocean
HabitatOpen ocean
DietSquid and fish
About the Northern Right Whale Dolphin
In the dark, mysterious depths of the North Pacific, a spectral form glides effortlessly, its sleek, black body slicing through the waves with a silent elegance that belies its remarkable speed. The Northern Right Whale Dolphin, a creature of unbridled energy, is a master of the open ocean, its slender fins propelling it through the water with a fluidity that is both mesmerizing and humbling. As it breaks the surface, its curved dorsal fin rises like a scimitar, a fleeting glimpse of a life lived in the fast lane, where the pursuit of squid and fish is a perpetual, thrilling chase.
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