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Porpoises (/ ˈ p ɔː r p ə s ɪ z /) are small dolphin-like cetaceans classified under the family Phocoenidae. Although similar in appearance to dolphins , they are more closely related to narwhals and belugas than to the true dolphins . [ 1 ]
Harbour porpoises tend to be solitary foragers, but they do sometimes hunt in packs and herd fish together. [10] Young porpoises need to consume about 7% to 8% of their body weight each day to survive, which is approximately 15 pounds or 7 kilograms of fish. Significant predators of harbour porpoises include white sharks and killer whales (orcas
Dall's porpoises live in small, fluid groups of two to ten individuals, [7] but aggregations of hundreds have been reported. [11] They have a polygynous mating system in which males compete for females. [14] During the mating season, a male will select a fertile female and guard her to ensure paternity. [14]
Swimming off the coast of Mexico in the Gulf of California live the few remaining vaquitas on earth. This endangered cetacean is not only the smallest porpoise species, but the most rare. Where ...
A recent survey using drones showed a 10% decline in the number of sightings of porpoises in 2024. ... dolphins and porpoises that live along the north-west coast of Wales.
Like other porpoises, their behaviour tends to be not as energetic and showy as that of dolphins. They do not ride bow waves, and in some areas appear to be shy of boats. [3] Finless porpoises make both high frequency clicking sounds, and longer, low frequency tones, the latter perhaps being for communication, rather than echolocation. [9]
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The order Cetacea includes whales, dolphins and porpoises. They are the mammals most fully adapted to aquatic life with a spindle-shaped nearly hairless body, protected by a thick layer of blubber, and forelimbs and tail modified to provide propulsion underwater. Suborder: Mysticeti. Family: Balaenopteridae (baleen whales) Genus: Eubalaena