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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.
Fewer vessels will be required to reduce their speed, which is likely to contribute to the extinction of the North Atlantic right whale, a species that is vulnerable to extinction and classified ...
The International Union for Conservation of Nature categorizes the species as "Endangered", and categorizes the Northeast Pacific population as "Critically Endangered". [7] The Center for Biological Diversity argues that the North Pacific right whale is the most endangered whale on Earth. [8]
Some species, such as the humpback whale, communicate using melodic sounds, known as whale song. These sounds may be extremely loud, depending on the species. Humpback whales only have been heard making clicks, while toothed whales use sonar that may generate up to 20,000 watts of sound (+73 dBm or +43 dBw) [55] and be heard for many miles.
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 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 ...
Blue whales are formally classified as endangered under both the U.S. Endangered Species Act [127] and the IUCN Red List. [1] They are also listed on Appendix I under the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) [128] and the Convention on the Conservation of Migratory Species of Wild Animals. [129]
A larger western population of 100–200 appears to be surviving in the Sea of Okhotsk, but very little is known about this population. Thus, the two northern right whale species are the most endangered of all large whales and two of the most endangered animal species in