Rissos Gray Dolphin Skull
Risso’s Gray Dolphin, also called the Grampus dolphin, has a large range occurring in many of the world’s oceans and seas. This species is gregarious, congregating in pods usually numbering 10 to 40 individuals.
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Rissos Gray Dolphin Skull measures 22 inches. Rissos Gray Dolphin Skull is museum quality polyurethane cast. Made in USA. Cast of an original California Academy of Sciences specimen. 2-part skull (separate cranium and jaw). Our precise skull can be used as a teaching tool, museum skull exhibit, home decor skull, or office decor skull.
Rissos Gray dolphin or Grampus griseus is the only species of dolphin in the genus Grampus. It is commonly known as the Monk dolphin among Taiwanese fishermen.
Rissos Gray dolphin or Grampus griseus has a relatively large anterior body and dorsal fin, while the posterior tapers to a relatively narrow tail.
The bulbous head has a vertical crease in front. Older individuals appear mostly white. Most individuals have two to seven pairs of teeth, all in the lower jaw.
Rissos Gray dolphin or Grampus griseus has a relatively large anterior body and dorsal fin, while the posterior tapers to a relatively narrow tail. The bulbous head has a vertical crease in front. Length is typically 10 feet, although specimens may reach 13.12 feet.
Like most dolphins, males are typically slightly larger than females. This species weighs 660 to 1,100 lb., making it the largest species called dolphin.
Linear scars mostly from social interaction eventually cover the bulk of the body; Rissos Gray dolphin or Grampus griseus tend to be unusually heavily scarred. Older individuals appear mostly white. Most individuals have two to seven pairs of teeth, all in the lower jaw.
Rissos Gray dolphin or Grampus griseus are found worldwide in temperate and tropical waters, usually in deeper waters rather, but close to land.
As well as the tropical parts of the Indian, Pacific and Atlantic Oceans, they are also found in the Persian Gulf and Mediterranean and Red Seas. They range as far north as the Gulf of Alaska and southern Greenland and as far south as Tierra del Fuego.
Their preferred environment is just off the continental shelf on steep banks, with water depths varying from 1,300 to 3,300 ft. They feed almost exclusively on neritic and oceanic squid.
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