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Whales are fully aquatic, open-ocean animals: they can feed, mate, give birth, suckle and raise their young at sea. Whales range in size from the 2.6 metres (8.5 ft) and 135 kilograms (298 lb) dwarf sperm whale to the 29.9 metres (98 ft) and 190 tonnes (210 short tons) blue whale, which is the
This is an accepted version of this page This is the latest accepted revision, reviewed on 9 January 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 ...
The sperm whale or cachalot [a] (Physeter macrocephalus) is the largest of the toothed whales and the largest toothed predator. ... Life cycle. Sperm whales can live ...
The gray whale (Eschrichtius robustus), [1] also known as the grey whale, [5] is a baleen whale that migrates between feeding and breeding grounds yearly. It reaches a length of 14.9 meters (49 ft), a weight of up to 41 tonnes (90,000 lb) and lives between 55 and 70 years, although one female was estimated to be 75–80 years of age.
The sperm whale reaches sexual maturity within about 20 years and has a lifespan between 50 and 100 years. [58] For most species, reproduction is seasonal. Ovulation coincides with male fertility. This cycle is usually coupled with seasonal movements that can be observed in many species. Most toothed whales have no fixed bonds.
Some whales are more than 100 years old, smashing previously estimated life expectancies, according to new research. Researchers examining southern right whales found that the median life span for ...
5.4 meter (18 foot) female killer whale compared to 1.8 meter (5 foot 11 inches) human scuba diver. ... Life cycle. Adult female orca with calf near South Georgia.
The bowhead whale is the only baleen whale to spend its entire life in the Arctic and subarctic waters. [37] The Alaskan population spends the winter months in the southwestern Bering Sea. The group migrates northward in the spring, following openings in the ice, into the Chukchi and Beaufort seas. [38]