Free diver is swimming over a pod of Sleeping sperm whale (Physeter macrocephalus) Researchers first saw this unusual sleep behavior in sperm whales in 2008. The scientists in that study found that sperm whales dozed in this upright drifting posture for about 10 to 15 minutes at a time, Vulnerable (IUCN). The sperm whale is the largest of the toothed whales. Sperm whales are known to dive as deep as 1,000 meters in search of squid to eat. Dominica, Caribbean Sea, Atlantic Ocean. Photo taken under permit n°RP 16-02/32 FIS-5.

© Franco Banfi / Biosphoto

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Image size: 5472x3648 pixels (18.2"x12.2" @300dpi)

Shooting date : 2017-01-28

Keywords

Leisure / Sport / Diving / Diver

Animal / Wild animal / Chordate / Vertebrate / Synapsid / Therapsid / Mammal / Marine mammal / Cetacean / Whale / Sperm whale / Sperm whale (Physeter catodon)

Species / Species particularity / Aquatic species / Saltwater species

February

January

Species / Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) / CITES Appendix 1

Species / IUCN Red List of Threatened Species / Threatened endangered species / Vulnerable (IUCN) VU

Leisure / Sport / Diving / Snorkeling

Best of

World sea and ocean / Atlantic Ocean / North Atlantic Ocean / Caribbean Sea

Sleepy

Individual / Stage of development / Adult

Area / Marine area / Sea / Tropical sea

America / Antilles islands archipelago / Lesser Antilles (Archipelago) / Dominica island

Colour / Blue

Shot / Underwater shot

Shot / Overview

Motion / Locomotion / Swim

Rest / Sleep

Enumeration / Group

Individual / Person

Latin keywords

Eukaryota / Opisthokonta / Metazoa / Bilateria / Coelomata / Deuterostomia / Chordata / Vertebrata / Gnathostomata / Euteleostomi / Sarcopterygii / Rhipidistia / Tetrapodomorpha / Tetrapoda / Synapsida / Eupelycosauria / Therapsida / Cynodontia / Mammalia / Cetacea / Physeteridae / Physeter

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