Search results
Results From The WOW.Com Content Network
Porpoises range in size from the vaquita, at 1.4 metres (4 feet 7 inches) in length and 54 kilograms (119 pounds) in weight, to the Dall's porpoise, at 2.3 m (7 ft 7 in) and 220 kg (490 lb). Several species exhibit sexual dimorphism in that the females are larger than males.
Cetacean intelligence is the overall intelligence and derived cognitive ability of aquatic mammals belonging in the infraorder Cetacea (cetaceans), including baleen whales, porpoises, and dolphins. In 2014, a study found for first time that the long-finned pilot whale has more neocortical neurons than any other mammal, including humans ...
Karen Liane Pryor (née Wylie; May 14, 1932 – January 4, 2025) was an American author who specialized in behavioral psychology and marine mammal biology. She was the founder and proponent of clicker training. [1]
In 2017 Hoyt published Encyclopedia of Whales, Dolphins and Porpoises which "draws on more than 40 years of scientific interactions with these intelligent and fascinating creatures," according to Library Journal: "Hoyt writes movingly on life cycles, the future for these animals and how readers can get involved in protecting them."
The harbour porpoise is a little smaller than the other porpoises, at about 67–85 cm (26 + 1 ⁄ 2 – 33 + 1 ⁄ 2 in) long at birth, weighing 6.4–10 kg. Adults of both sexes grow to 1.4 to 1.9 m (4 ft 7 in to 6 ft 3 in). The females are heavier, with a maximum weight of around 76 kg (168 lb) compared with the males' 61 kg (134 lb).
Articles relating to the porpoises (family Phocoenidae), small dolphin-like cetaceans. Although similar in appearance to dolphins, they are more closely related to narwhals and belugas than to the true dolphins. There are eight extant species of porpoise, all among the smallest of the toothed whales. Porpoises are distinguished from dolphins by ...
The Pacific white-sided dolphin (Lagenorhynchus obliquidens), also known as the hookfin porpoise, is an active dolphin found in the cool or temperate waters of the North Pacific Ocean. [ 4 ] [ 5 ] Taxonomy
Patterns of coloration are highly variable, but Dall's porpoises are mostly black, have white to grey patches on the flank and belly, and frosting on the dorsal fin and trailing edge of the fluke. [6] [7] They are the largest porpoise species, growing up to 2.3 metres (7 ft 7 in) in length and weighing 130–220 kilograms (290–490 lb). [7]