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sciencing.com/characteristics-dolphins-8394898.html

Dolphins form strong bonds with other dolphins, and if one dolphin become injured, the others help it to reach the surface. Most dolphins stay in groups of up to 12 dolphins, but many groups often come together in the ocean wild, at which time, dolphins may exit one group and join another.

www.reference.com/pets-animals/characteristics-dolphins-9af076627246f4d7

What Are the Characteristics of Dolphins? Dolphins are members of the Odontoceti, a suborder of cetaceans - that is, all whales, dolphins and porpoises - that means "toothed whales." There are approximately 40 species of dolphins and all are carnivores, primarily subsisting on fish and cephalopods.

factsanddetails.com/world/cat53/sub342/item1238.html

Dolphin Characteristics . Dolphins have lived to be 55 in captivity and are believed to live around the age of 30 in the wild. The distinct dolphin "smile" is a manifestation of the natural curve of the animal’s jawline not a friendly disposition. It is the result of a flared jawbone, which serves as an ultra-sensitive ear.

seaworld.org/animals/all-about/bottlenose-dolphin/characteristics

In the Mediterranean, bottlenose dolphins can grow to 3.7 m (12 ft.) or more. Body Shape. A bottlenose dolphin has a sleek, streamlined, fusiform body. Skin. Bottlenose dolphins have a few, sparse hair follicles around the tip of their rostrum, though any individual hairs that are present fall out before or shortly after birth.

www.bartleby.com/essay/Characteristics-of-Dolphins-PKGANQZTJ

Essay on Characteristics of Dolphins. 1099 Words 5 Pages. Characteristics of Dolphins The majority of small tooth whales are called dolphins. “Dolphins are mammals of the order Cetacean and the families Plantanistidae and Delphinidae and include about 50 species” (Internet 1). Most dolphin species are about 6 feet in length, the males ...

en.wikipedia.org/wiki/Dolphin

Dolphin is a common name of aquatic mammals within the infraorder Cetacea.The term dolphin usually refers to the extant families Delphinidae (the oceanic dolphins), Platanistidae (the Indian river dolphins), Iniidae (the new world river dolphins), and Pontoporiidae (the brackish dolphins), and the extinct Lipotidae (baiji or Chinese river dolphin). There are 40 extant species named as dolphins.

www.thoughtco.com/facts-about-dolphins-129800

Dolphins (Odontoceti) are a group of 44 species of toothed whales or cetaceans.There are dolphins in every ocean on Earth, and there are freshwater species of dolphins that inhabit rivers in South Asian and South American. The largest dolphin species (the orca) grows to more than 30 feet long while the smallest, Hector's dolphin, is just 4.5 feet in length.

animals.mom.me/traits-dolphin-7192.html

Around 50 million years ago, relatives of modern day dolphins first entered the seas. Today, these aquatic mammals -- who are part of the order Cetacean -- can be found in oceans all across the globe, and even occasionally in rivers. Although there are 36 different species of dolphin, they all have certain traits in ...

www.animalinyou.com/animals/dolphin

Dolphins in the Wild. Dolphins live in schools containing males and females of all ages. There does not appear to be any particular leader, but males do observe a hierarchical structure on size. Dolphins are highly social animals and will assist an injured member of the school, raising it to the surface to breathe.

defenders.org/dolphin/basic-facts

Basic Facts About Dolphins. Dolphins are highly intelligent marine mammals and are part of the family of toothed whales that includes orcas and pilot whales. They are found worldwide, mostly in shallow seas of the continental shelves, and are carnivores, mostly eating fish and squid. Dolphin coloration varies, but they are generally gray in ...