Bottlenose dolphins are two to four meters (6.6 to 13.2 feet) in length when adult and weigh anywhere from 150 to 650 kilograms (330 to 1443lbs), with males typically being larger than females. Bottlenose dolphins are gray in color, with a lighter under-belly, which is frequently revealed when they playfully leap out of the water.
The bottlenose dolphin can be found in most regions of the world, except in polar waters, which are too cold for these dolphins. They are found both near the shore and out at sea, with those living offshore generally growing to a larger size.
While solitary bottlenose dolphins are not unheard of, these creatures tend to live in groups known as pods. Pods range in size, most commonly being made up of 15 members but remarkably super-pods of over 1000 dolphins have been observed in the wild.
These aquatic mammals love to eat fish but their diet may also include shrimp, squid and eels.
Bottlenose dolphins are widely thought to be one of the most intelligent members of the animal kingdom. Interestingly, their brain is even larger than that of humans. However, brain size does not correlate perfectly with intelligence, and many further studies have been used to try to determine the true level of dolphin intelligence.
It is the bottlenose dolphin's high intelligence, along with its echolocation ability that has made it such a useful ally in naval operations. The Navy Marine Mammal Program trains these animals to detect sea mines and enemy divers. Upon finding a mine the dolphin will report to its handler, who will then send the dolphin back out with a buoy with which to more specifically mark the location of the mine.
The success of bottlenose dolphins may be in no small part due to the high degree of genetic variation found in their gene pool. This renders bottlenose populations more resilient to disease, as there is likely to be at least a few individuals that by chance have a genetic make-up which renders them resistant to a new attacking pathogen, enabling them to replenish the population. However, the sheer scale of the genetic diversity of the bottlenose dolphin leads some scientists to conclude that it is not a single species at all.
The Bottle-nosed dolphin, bottlenose dolphin, bottlenosed 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 bottlenosed dolphinA young / baby of a bottlenosed dolphin is called a 'calf or pup'. The females are called 'cow' and males 'bull'. A bottlenosed dolphin group is called a 'team, school, pod, herd, alliance (male) or party (female)'.
CountriesArgentina, Australia, Barbados, Brazil, Bulgaria, Canada, Chile, China, Denmark, Finland, France, Georgia, Germany, Greenland, Honduras, India, Indonesia, Ireland, Italy, Japan, Kenya, Libya, Malaysia, Malta, Mexico, Mozambique, Namibia, Netherlands, Pakistan, Poland, Portugal, Puerto Rico, Romania, Russia, Saint Helena, Saint Vincent and the Grenadines, Samoa, Senegal, Seychelles, South Africa, Sri Lanka, Taiwan, Tanzania, Thailand, Tunisia, Turkey, Ukraine, United Kingdom, United States, Uruguay and Venezuela
Bottlenosed dolphin habitatsEpipelagic (0-200m), Estuaries, Marine Neritic, Marine Oceanic and Pelagic
Some facts about the
Adult weight : 200 kg (440 lbs)
Maximum longevity : 52 years
Female maturity :2831 days
Male maturity : 3689 days
Gestation : 365 days
Weaning : 548 days
Litter size : 1
Litters per year : 1
Interval between litters : 858 days
Weight at birth : 19.35 kg (42.57 lbs)