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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. [11] 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]
A great number of harbour porpoises live in the national park. [15] The Wadden Sea is also home to harbour seals and grey seals. According to the official counting of the National park Administration, about 13.000 harbour seals are living in the Wadden Sea of Schleswig-Holstein (2017).
The problem for the vaquita is that the fishing nets used to wrangle in totoaba are a good size for the endangered porpoises to get caught and die in. 'Aquatic cocaine' may push smallest porpoise ...
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
Mortgage rates rose for a fifth straight week as pre-election volatility continued to rock the bond market. The average 30-year fixed-rate mortgage was 6.72% in the week through Wednesday ...
MEXICO CITY (Reuters) -Mexico is seeking an agreement with U.S. President-elect Donald Trump to ensure Mexico does not receive deportees from third countries in case of large-scale deportations ...