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The family Balaenidae, the right whales, contains two genera and four species. All right whales have no ventral grooves; a distinctive head shape with a strongly arched, narrow rostrum, bowed lower jaw; lower lips that enfold the sides and front of the rostrum; and long, narrow, elastic baleen plates (up to nine times longer than wide) with fine baleen fringes.
The hunting of whales on an industrial scale began in the 17th century and into the 20th century, and as a result of the quantities caught many whales became endangered species. The International Whaling Commission (IWC) banned commercial whaling in 1986 to increase the remaining whale population in the seas.
[123] [124] The protected status of North Atlantic blue whales was not recognized by Iceland until 1960. [125] In the United States, the species is protected under the Endangered Species Act. [65] Blue whales are formally classified as endangered under both the U.S. Endangered Species Act [126] and the IUCN Red List. [1]
Some cetaceans may forage with other kinds of animals, such as other species of whales or certain species of pinnipeds. [75] [76] Large whales, such as mysticetes, are not usually subject to predation, but smaller whales, such as monodontids or ziphiids, are. These species are preyed on by the orca.
The second-largest whale species after blue whales, fin whales are classified as endangered species, according to NOAA. A fully grown whale can reach up to 85 feet long and weigh between 40 and 80 ...
The IUCN Red List of Threatened Species by the International Union for Conservation of Nature is the best known worldwide conservation status listing and ranking system. . Species are classified by the IUCN Red List into nine groups set through criteria such as rate of decline, population size, area of geographic distribution, and degree of population and distribution fragmenta
North Atlantic right whales have been listed as endangered under the Endangered Species Act since 1970, according to the National Oceanic and Atmospheric Administration. Latest estimates suggest ...
Spade-toothed whales are the world’s rarest, with no live sightings ever recorded. ... DNA sequencing in 2002 proved that all three specimens were of the same species — and that it was one ...
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