Bottlenosed Dolphin

Tursiops truncatus

Classification

  • Domain Eukarota: The four kingdoms that fit into this group are Prostista, Fungi, Plantae, and Animalia. Every animal is apart of this Domain. Single or multicellular. All cells have a nucleus.
  • Kingdom Animalia: All animals are apart of the Kingdom Animalia. Doesn't contain prokaryotes or protists. All are multicellular, lack cell walls and are heterotrophs.
  • Phylum Chordata: Organisms that have a structure called a notochord. Phylum Chordata has bilateral symmetry and are chordates.
  • Subphylum Vertebrata: Vertebrates that share a vertebral column. Some characteristics are shared by some or all vertebrates.
  • Class Mammalia: Includes about 5,000 species places in 26 orders.
  • Order Cetacea: All cetaceans share a number of similarities.
  • Family Delphinidae: Delphinds are found in oceans and seas and some river systems. They are fast swimmers and use high-intensity sound to shock their prey.
  • Genus Tursiops: Bottlenosed dolphin

General Description

Length: The average length of a bottlenosed dolphin is 228 to 381 cm.


Weight: The average weight of a bottlenosed dolphin is 881.06 lb.


Color: Bottlenosed dolphins are usually colored in some mixture of black, white, and gray.


Diet: The primary diet of a bottlenosed dolphin is mostly fish.


Predators: Mostly a bottlenosed dolphinsonly predators is a shark. Some types of mostly dolphin eating sharks are the bull sharks, tiger sharks, and dusky sharks.


Natural Range: Bottlenosed dolphins are found everywhere except polar waters.


Habitat Description: The dolphins habitat is in waters. It is usually found in deep waters and not too cold of water.

Physical Adaptions

The dolphin's soft, together with its flippers, flukes, and dorsal fin, adapt this animal for water life. A dolphin's forelimbs are pectoral flippers, which are the two front baby flippers. As it swims, a dolphin uses its front flippers to steer and with the help of the back tail to stop. Both dolphins and whales have many layers of blubber, but they don't sweat because they are in water and don't have sweat glands. Dolphins do have taste buds and scientists believe that they can detect the difference between different types of chemicals. They can taste the difference between alt water and regular water, too. A dolphins eyesight isn't very good but they can wink and blink. Their hearing is small and sensitive to pulses and and is able to respond to others as far as 120 kilometers or maybe beyond. The dolphins smell isn't very good either because of the environment they live in.

Behavioral Adaptions

Adults eat about 4-5% of their body weight per day. Bottlenose dolphins often cooperate when hunting and catching fish. In open waters, a dolphin group sometimes circles around a large school of fish and herds them into a tight area for easy catching. The dolphins take turns bursting through the school to eat fish while the others keep the fish from getting out. Occasionally dolphins group fish to shallow water and trap them against a shore or sandbar. Breeding throughout the year may happen but breeding usually happens in the warmer months. Females breed one every 3 to 6 years starting around the ages of 8-13. Both young and old dolphins chase each other, carry objects around, toss seaweed to one another, and use objects to invite each other to play together. This activity may be practice for catching fish but it also may be just for the fun. Dolphins are very social. They mostly live in groups that range widely from hundreds to a couple individuals. They go over to hangout with smaller group sometimes and leave the big group. They are very active animals and can swim up to 30 km/hr, but usually they just swim around 3 to 6 km/hr. Bottlenosed dolphins can be aggressive and will sometimes bite, ram into others, slap others with their tails. But they are also very nice animals. They bond together, stroke each other, and rub each other.
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References

References

Bottlenose dolphin mammalia. (n.d.). Retrieved from http://seaworld.org/animal-info/animal-bytes/mammals/bottlenose-dolphin/

Burton, M., & Burton, R. (2002). Bottlenosed dolphin. In International wildlife encyclopedia (3rd ed., Vol. 2, pp. 266-268). New York, NY: Marshall Cavendish.

Jenkins, J. 2009. "Tursiops truncatus" (On-line), Animal Diversity Web. Accessed March 11, 2015 at http://animaldiversity.org/accounts/Tursiops_truncatus/

Tursiops truncatus — Overview Bottlenose Dolphin. (n.d.). Retrieved from http://eol.org/pages/129548/overview