Landwhale: On Turning Insults Into Nicknames, Why Body Image Is Hard, and How Diets Can Kiss My Ass

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Griffin, Catherine (7 December 2015). "Beluga Bubbles Reveal How These Whales Are Feeling". Science World Report . Retrieved 19 December 2015. Bianucci, G.; Marx, F. G.; Collareta, A.; Di Stefano, A.; Landini, W.; Morigi, C.; Varola, A. (2019). "Rise of the titans: baleen whales became giants earlier than thought". Biology Letters. 15 (5): 20190175. doi: 10.1098/rsbl.2019.0175. PMC 6548731. PMID 31039728. Whales are the largest animals on Earth and they live in every ocean. The massive mammals range from the 600-pound dwarf sperm whale to the colossal blue whale, which can weigh more than 200 tons and stretch up to 100 feet long—almost as long as a professional basketball court.

IWC. "The Great Whales". International Whaling Commission. Archived from the original on 21 March 2017 . Retrieved 8 April 2018. Whale morphology shows several examples of convergent evolution, the most obvious being the streamlined fish-like body shape. [29] Other examples include the use of echolocation for hunting in low light conditions— which is the same hearing adaptation used by bats— and, in the rorqual whales, jaw adaptations, similar to those found in pelicans, that enable engulfment feeding. [30] LeDuc, R. G.; Dizon, A. E.; Goto, M.; Pastene, L. A.; Kato, H.; Nishiwaki, S.; LeDuc, C. A.; Brownell, R. L. (2023). "Patterns of genetic variation in Southern Hemisphere blue whales, and the use of assignment test to detect mixing on the feeding grounds". Journal of Cetacean Research and Management. 9: 73–80. doi: 10.47536/jcrm.v9i1.694. S2CID 257136658. Moskowitz, Clara (2 June 2011). "Jaw-Dropping Similarity Found in Whales and Pelicans". Live Science. Archived from the original on 3 July 2012 . Retrieved 17 January 2017. Blue whale calls recorded off Sri Lanka have a three‐unit phrase. The first unit is a 19.8 to 43.5Hz pulsive call, and is normally 17.9 ± 5.2 seconds long. The second unit is a 55.9 to 72.4Hz FM upsweep that is 13.8 ± 1.1 seconds long. The final unit is 28.5 ± 1.6 seconds long with a tone of 108 to 104.7Hz. [95] A blue whale call recorded off Madagascar, a two‐unit phrase, [96] consists of 5–7 pulses with a center frequency of 35.1 ± 0.7Hz lasting 4.4 ± 0.5 seconds proceeding a 35 ± 0Hz tone that is 10.9 ± 1.1 seconds long. [95] In the Southern Ocean, blue whales produce 18-second vocals which start with a 9-second-long, 27Hz tone, and then a 1-second downsweep to 19Hz, followed by a downsweep further to 18Hz. [97] [98] Other vocalizations include 1–4 second long, frequency-modulated calls with a frequency of 80 and 38Hz. [98] [99]

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a b c Branch, T. A.; Abubaker, E. M. N.; Mkango, S.; Butterworth, D. S. (2007). "Separating southern blue whale subspecies based on length frequencies of sexually mature females". Marine Mammal Science. 23 (4): 803–833. doi: 10.1111/j.1748-7692.2007.00137.x. Which countries are still whaling". International Fund for Animal Welfare . Retrieved 29 August 2015. Whole genome sequencing suggests that blue whales are most closely related to sei whales with gray whales as a sister group. This study also found significant gene flow between minke whales and the ancestors of the blue and sei whale. Blue whales also displayed high genetic diversity. [12] Hybridization

Introduction to Cetacea: Archaeocetes: The Oldest Whales". University of Berkeley . Retrieved 25 July 2015. Captive whales have occasionally been known to mimic human speech. Scientists have suggested this indicates a strong desire on behalf of the whales to communicate with humans, as whales have a very different vocal mechanism, so imitating human speech likely takes considerable effort. [56] The average length of sexually mature female blue whales is 22.0 meters (72.1ft) for Eastern North Pacific blue whales, 24 meters (79ft) for central and western North Pacific blue whales, 21–24 meters (68–78ft) for North Atlantic blue whales, 25.4–26.3 meters (83.4–86.3ft) for Antarctic blue whales, 23.5 meters (77.1ft) for Chilean blue whales, and 21.3 meters (69.9ft) for pygmy blue whales. [41] [46] [47] How Pakicetus' descendants evolved into whales is one of the most intriguing evolutionary journeys known to science. What did the first whales look like?Blue whales are known to interbreed with fin whales. The earliest description of a possible hybrid between a blue and fin whale was a 20-meter (65ft) anomalous female whale with the features of both the blue and the fin whales taken in the North Pacific. [16] A whale captured off northwestern Spain in 1984, was found to have been the product of a blue whale mother and a fin whale father. [17] Viegas, Jennifer (23 February 2010). "Thousands Mourn Dead Whale in Vietnam". Seeker . Retrieved 30 March 2022. Björgvinsson, Ásbjörn; Lugmayr, Helmut; Camm, Martin; Skaptason, Jón (2002). Whale watching in Iceland. ISBN 978-9979-761-55-6. Spilliaert, R.; Vikingsson, G.; Arnason, U.; Palsdottir, A.; Sigurjonsson, J.; Arnason, A. (1991). "Species hybridization between a female blue whale ( Balaenoptera rnusctllus) and a male fin whale ("B.pbysalus"): Molecular and morphological documentation". Journal of Heredity. 82 (4): 269–274. doi: 10.1093/oxfordjournals.jhered.a111085. PMID 1679066.

Sperm Whales ( Physeter macrocephalus)". NOAA Fisheries – Office of Protected Resources. 13 November 2013. Archived from the original on 10 July 2014 . Retrieved 9 August 2015.

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B. musculus" redirects here. For rodent, see Southern pygmy mouse. For ant, see Brachymyrmex musculus. Boisserie, Jean-Renaud; Lihoreau, Fabrice; Brunet, Michel (2005). "The position of Hippopotamidae within Cetartiodactyla". Proceedings of the National Academy of Sciences. 102 (5): 1537–1541. Bibcode: 2005PNAS..102.1537B. doi: 10.1073/pnas.0409518102. PMC 547867. PMID 15677331.