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Original source: Cropped from rissos-dolphin_1. Photo shot with a Canon 20D w/ 100-400 mm IS lens handheld
Author: Cropped from photo by Mike Baird (bairdphotos.com)
Permission: This file is licensed under Creative Commons Attribution 2.0 License
Some facts about the
Risso's dolphin
Adult weight : 425 kg (935 lbs)
Maximum longevity : 43 years
Gestation : 365 days
Litter size : 1
Risso's dolphin
Order : Cetacea
Suborder : Odontoceti
Family : Delphinidae
Species : Grampus griseus
The Grey dolphin, risso's dolphin is listed as Data Deficient (DD), inadequate information to make a direct, or indirect, assessment of its risk of extinction, on the IUCN Red List of Threatened Species
Namings for the Risso
A young / baby of a Risso is called a 'calf or pup'. The females are called 'cow' and males 'bull'. A Risso group is called a 'team, school, pod, herd, alliance (male) or party (female)'.Countries
Albania, Anguilla, Antigua and Barbuda, Argentina, Aruba, Australia, Barbados, Belgium, Bermuda, Bosnia and Herzegovina, Brunei, Burma, Cambodia, Canada, Cayman Islands, Chile, China, Costa Rica, Croatia, Denmark, Dominican Republic, Estonia, Finland, France, Germany, Greece, Grenada, Haiti, India, Indonesia, Iran, Iraq, Ireland, Italy, Jamaica, Japan, Jordan, Kenya, Korea, South, Kuwait, Lebanon, Lithuania, Malaysia, Maldives, Malta, Mexico, Namibia, Netherlands, Netherlands Antilles, New Caledonia, New Zealand, Norway, Oman, Pakistan, Palau, Papua New Guinea, Philippines, Poland, Portugal, Puerto Rico, Qatar, Russia, Saint Kitts and Nevis, Saint Lucia, Saint Pierre and Miquelon, Saint Vincent and the Grenadines, Saudi Arabia, Seychelles, Singapore, Slovenia, Solomon Islands, South Africa, Spain, Sri Lanka, Sweden, Syria, Taiwan, Tanzania, Thailand, TimorLeste, Trinidad and Tobago, Turkey, United Arab Emirates, United Kingdom, United States, Vietnam, Virgin Islands and Yemen
Facts about the Risso's dolphin
Most adult risso's dolphins are badly marked with scars, apparently caused by the teeth of other risso's dolphins.
Behaviour: Risso's Dolphins are usually seen in groups of 3-50 animals.
Department of Pathobiology, University of Florida, College of Veterinary Medicine, Gainesville, FL, USA The Risso's dolphin, Grampus griseus, is a cetacean that is typically found throughout tropical and warm-temperate waters.
Recognition at sea: The adult Risso's Dolphin is quite easy to recognise at sea with their distinctive scarring.
Risso's dolphins are commonly called Grampus because of their species name, Grampus griseus.
The Risso's Dolphin (Grampus griseus) is the only species of dolphin in the genus Grampus. (Full text)
Another common name for Risso's Dolphin is the Grampus (also the species genus) - although as a common name was historically used to describe the Orca. (Full text)
htm Infectious Diseases Jonovich & Sweat: The Risso's dolphin, Grampus griseus, is a cetacean that is typically found http://scholar. (Full text)
The Risso's Dolphin is a [CITIES-listed Endangered Species] (Full text)
(Cuvier, 1812) The Risso's Dolphin (Grampus griseus) is the only species of dolphin in the genus Grampus. (Full text)
COLOR Adult Risso's dolphins are usually dark gray with extensive white scarring. (Full text)
Risso's dolphins are frequently covered in white scratches and scars, which are usually caused by the teeth of other Risso’s dolphins, and this gives them a distinctly "battered" appearance. (Full text)
Behaviour: Risso's dolphins are usually seen in groups of 3-50 animals. (Full text)
Risso's dolphins are distributed world wide and are mostly seen in temperate and tropical waters. (Full text)
Risso's Dolphin range The Risso's Dolphin (Grampus griseus) is the only species of dolphin in the genus Grampus. (Full text)
The Risso's Dolphin (Grampus griseus) is a species of dolphin. (Full text)
Habitat informationGrampus griseus is a deep water species sighted close to shore where the continental shelf is narrow and around oceanic islands. (Full text)
Risso's Dolphins are often in the company of Pacific White-Sided Dolphins and Northern Right Whale Dolphins. (Full text)
[Purchase Print] The typical lifespan of a Risso's dolphin is estimated to be at least 20 years and perhaps up to 40 years. (Full text)
White scarring, likely caused by other Risso dolphin's teeth, accumulates during the dolphin's life so that adult Risso's dolphins are almost entirely white. (Full text)
Grampus griseus The Risso's Dolphin (Grampus griseus) is a species of dolphin. (Full text)
1. killer whale, killer, orca, grampus, sea wolf, Orcinus orca -- (predatory black-and-white toothed whale with large dorsal fin; common in cold seas)killer whale
killer
orca
grampus
sea wolf
Orcinus orca
2. grampus, Grampus griseus -- (slaty-gray blunt-nosed dolphin common in northern seas)
grampus
Grampus griseus
(Source WordNet)