How Long Do Dolphins Live? Fin-tastic Facts All Kids Should Know | Kidadl

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How Long Do Dolphins Live? Fin-tastic Facts All Kids Should Know

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Whales and dolphins are categorized into Cetaceans as these species are aquatic mammals.

They come under order Cetacea. All dolphins are whales but not all whales are dolphins. Several studies are being conducted on dolphins in zoological care.

Bottlenose dolphins have a wild population consisting of around 600,000 dolphins. They are marine mammals. Currently identified are 40 species of dolphin, amongst them, 36 are endangered and four are river species. There's an increase in the survival rates of the marine mammal parks aquariums. The Zoological name of the dolphin is Delphinus. Dolphins are known to eat a variety of food like shrimps, fish, squid, and octopuses. Male dolphins are also known as bulls. Young dolphins are known as dolphin calves. Female dolphins are known as cows. Population status estimates that there are around 77,000 dolphins who are spotted in the Atlantic waters of the US. After reading all about the lifespan and survival instincts of this aquatic animal, do read about what do dolphins eat and how long do crocodiles live?

Different Types Of Dolphin And Their Lifespans

Dolphins are considered marine mammals. There are 42 species of Dolphins as of now. Orca is known as the largest dolphin in the ocean. They are also known as pilot whales or false killer whales. Dolphin species known as Tucuxi and New Zealand dolphins are the smallest known dolphins in the wild. Here are the names of some of the oceanic dolphins and their life span.

Bottlenose Dolphin - These marine animals live for 40 years. Female dolphins live for around 60 years outliving the males.

Amazon River Dolphin - They have a life expectancy of 15 to 20 years.

Dusky Dolphin - They live for 20 to 25 years.

Baiji Dolphin - The average life span is 20 to 25 years of age.

Killer Whale - They live for 30 to 50 years.

Hector's Dolphins - Their average life span is of 15-20 years.

Chinese River Dolphins - These marine animals live for 25 years.

Maui Dolphins - The average life expectancies of these dolphins is 20 years.

Orcas - This species is known to live for the longest as this marine mammal has a life expectancy of 90 years.

How long do dolphins live in the wild?

The life expectancy of dolphins is more than 20 years in aquaria. But when bottlenose dolphins are in the wild, these animals tend to live between 30 to 50 years.

When these species recognize their environment in the ocean, they can easily communicate with the help of complex vocalizations. Factors like the habitat of dolphins, the geographical structure, food diet, health status, endangerment levels, and the social culture dolphins have among them affect the life expectancies of the wild dolphins.

A female killer whale is known to live for 90 years and is said to be extremely social. The average life of a female whale is 50 years. Whereas, male whales live for 30 years. Male killer whales have a life span of 50 to 60 years. Dolphins that live in the wild tend to have longer life expectancies compared to dolphins in captivity. Social bonds and diet play a huge role in determining how long do dolphins live. Stripped dolphins have an average life span of 50 to 60 years whereas Amazon river dolphins live for only about 15 to 20 years.

Dolphin is one of the longest living aquatic animal species.

How long do dolphins live in captivity?

The survival rates of dolphins born in captivity are less than wild dolphins. Dolphins in the wild have a high mortality rate. Dolphin research has shown that 52.26% of bottlenose dolphins who were born in captivity are not able to survive even past one year.

Although, dolphins born in captivity live less than the dolphins captured from the wild and kept in captivity, according to the scientific report. The maximum age of the bottlenose dolphins born in captivity is 12 years, nine months, and eight days. Compared to that dolphins living in the wild live longer. Their average life span is 30 to 50 years.

Whales and Dolphins should never be kept in captivity. Due to the stress of confinement and the feeling of getting captured, the survival rates of dolphins in captivity are considered low. Whereas survival is high when the dolphins live near their social groups and in their own habitat. This is considered bad for the mental and physical health of whales and dolphins. In captivity, the death rates of calves are found to be higher as compared to those in the wild. Humans still tend to capture them from the oceans and trap them in captivity despite the awareness of this cruel exploitation.

What do dolphins normally die of?

The age of the dolphins is determined by the growth of the layer group of their teeth. The causes of death in dolphins are varied, mainly a variety of parasites are responsible for diseases and subsequent death of dolphins. Viral, bacterial, and fungal infections can be some of the diseases that usually happen in dolphins.

Dolphins also tend to develop skin diseases, respiratory disorders, stomach ulcers, tumors, and heart diseases. Tapeworms, roundworms, and flukes are the types of parasites that usually affect dolphins. 740 Bottlenose Dolphins were washed off dead on the shore of the eastern coast of the United States in 1987 and 1988. The reason for their death was bacterial and viral infections according to scientists. Such sudden deaths were known to be triggered by small marine organisms called Dinoflagellates. These were also known as red tide toxins. These made dolphins vulnerable to other such infections. Morbillivirus was another cause that led the dolphins to die.

An Unusual Mortality Event (UME), was declared when the NOAA Fisheries Office of Protected Resources revealed unexpected and massive death of the marine mammal population. The two major UMEs for bottlenose dolphins were declared in 2013. Those were the 2013 Bottlenose Dolphin Unusual Mortality Event in the Mid-Atlantic and the 2013 Bottlenose Dolphin Unusual Mortality Event in Florida.

Here at Kidadl, we have carefully created lots of interesting family-friendly facts for everyone to enjoy! If you liked our suggestions for how long do dolphins live then why not take a look at how long do fish live, or black dolphin facts.

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