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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.
[1] 56% of all evaluated mammalian species are listed as least concern. The IUCN also lists 127 mammalian subspecies as least concern. Of the subpopulations of mammals evaluated by the IUCN, one species subpopulation has been assessed as least concern. This is a complete list of least concern mammalian species and subspecies evaluated by the IUCN.
Conservationists are pleased that the sei whale continues to be listed as endangered, but Japan says that the species has swelled in number from 9,000 in 1978 to about 28,000 in 2002, so its catch of 50 sei whales per year is safe and the classification of endangered should be reconsidered for the North Pacific population.
[131]: 327–333 Several species that were commercially exploited have rebounded in numbers; for example, gray whales may be as numerous as they were prior to whaling, making it the first marine mammal to be taken off the endangered species list. [138]
1. River Dolphin. There are six species of river dolphins in the world, and sadly all are considered endangered or critically endangered according to the IUCN Red List of Threatened Species. Water ...
The World's 100 most threatened species [1] is a compilation of the most threatened animals, plants, and fungi in the world. It was the result of a collaboration between over 8,000 scientists from the International Union for Conservation of Nature Species Survival Commission (IUCN SSC), along with the Zoological Society of London . [ 2 ]
The animal's population fell about 25% from 2010 to 2020. The entanglement of the two whales illustrates the need for new safeguards to protect the animals, said Gib Brogan, campaign director at ...
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 ...