Short-finned pilot whale

Short-finned pilot whale[1]
Short-finned pilot whale surfacing
Size compared to an average human
CITES Appendix II (CITES)[3]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Artiodactyla
Infraorder: Cetacea
Family: Delphinidae
Genus: Globicephala
Species:
G. macrorhynchus
Binomial name
Globicephala macrorhynchus
Gray, 1846
  Range of the short-finned pilot whale
Synonyms

Globicephalus macrorhynchus

The short-finned pilot whale (Globicephala macrorhynchus) is one of the two species of cetaceans in the genus Globicephala, which it shares with the long-finned pilot whale (G. melas). It is part of the oceanic dolphin family (Delphinidae).

It has a worldwide distribution with a global population of about 700,000, and there may be 3 or 4 distinct populations—two in the Pacific and one in the Atlantic and Indian Oceans. Its range is moving northward due to global warming. In the Pacific, males average 4–6 m (13–20 ft) and females 3–5 m (9.8–16.4 ft). It generally has a stocky build with black to dark gray or brown skin, and can be distinguished from its counterpart by shorter flippers, fewer teeth, and a shorter beak. It is thought to pursue fast-moving squid typically at a depth of 700 m (2,300 ft), but the maximum recorded depth is 1,018 m (3,340 ft).

The short-finned pilot whale has been reported as being highly playful and social. It typically travels in pods of 10–30 members, usually family, but has been observed moving in groups of several hundred. Like killer whales, it has a matrilineal social hierarchy with an elder female at the head and a sizable post-reproductive lifespan. It is polygynous; females often outnumber males 8:1 in a pod.

Pods are known to mass strand, possibly due to sheer accident, biosonars confused by geomagnetic anomalies, injury from loud military sonar, or disease. It was historically whaled, and is still whaled today by Japan and the Lesser Antilles, but it is protected by several international treaties.

  1. ^ Mead, J. G.; Brownell, R. L. Jr. (2005). "Order Cetacea". In Wilson, D. E.; Reeder, D. M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. pp. 723–743. ISBN 978-0-8018-8221-0. OCLC 62265494.
  2. ^ Minton, G.; Braulik, G.; Reeves, R. (2018). "Globicephala macrorhynchus". IUCN Red List of Threatened Species. 2018: e.T9249A50355227. doi:10.2305/IUCN.UK.2018-2.RLTS.T9249A50355227.en. Retrieved 19 November 2021.
  3. ^ "Appendices | CITES". cites.org. Retrieved 14 January 2022.