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Whale skulls have small eye orbits, long snouts (with the exception of monodontids and ziphiids) and eyes placed on the sides of its head. Whales range in size from the 2.6-metre (8.5 ft) and 135-kilogram (298 lb) dwarf sperm whale to the 34-metre (112 ft) and 190-metric-ton (210-short-ton) blue whale.
The global blue whale population is estimated to be 5,000–15,000 mature individuals and 10,000–25,000 total as of 2018. By comparison, there were at least 140,000 mature whales in 1926. There are an estimated total of 1,000–3,000 whales in the North Atlantic, 3,000–5,000 in the North Pacific, and 5,000–8,000 in the Antarctic.
This is an accepted version of this page This is the latest accepted revision, reviewed on 27 February 2025. Large baleen whale species Humpback whale Temporal range: 7.2–0 Ma Pre๊ ๊ O S D C P T J K Pg N Late Miocene – Recent Size compared to an average human Conservation status Least Concern (IUCN 3.1) CITES Appendix I (CITES) Scientific classification Domain: Eukaryota Kingdom ...
A 2012 analysis of the scarification of right whales over the years 1980 to 2009 showed that 82.9% of all North Atlantic right whales experienced at least one fishing gear entanglement, 59.0% have had more than one such experience, and an average of 15.5% of the population are entangled in fishing gear annually.
Sightings of these whales have been documented as far south as Cape Cod and Long Island. [44] This population is possibly continuous with orcas sighted off Greenland. [43] Orcas are sighted year-round in the Caribbean Sea, [45] and an estimated 267 (as of 2020) are documented in the northern Gulf of Mexico. [46]
Because the oceans are so large, it is very difficult to accurately gauge whale population sizes. Approximate figures: [18] 400 North Atlantic right whales (Eubalaena glacialis) live in the North Atlantic; 23 North Pacific right whales have been identified in the eastern North Pacific (Eubalaena japonica) and
A group of researchers that studies the whales said Tuesday that the population increased to an estimated 372 in 2023. That's an increase of about 4% from 2020, and “heartening news” after the whale's population fell by about 25% from 2010 to 2020, researchers said in a statement.
The population began to decline after numbering about 27,000 whales in 2016. The mortality event hits its peak between Dec. 17, 2018, and Dec. 31, 2020, the agency said.