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Dolphin watching in Sri Lanka

Dolphins are amazing animals. They are socially adept, smart, nimble, happy, and playful beings that have many emotional traits in common with humans. There are an incredible number of different dolphin species, and each one has its own personality and traits. They are also thought to be one of the friendliest creatures as well. As a result, they are also one of the most popular ocean creatures all over the world. With their jolly attitude, friendly demeanor, and incredible acrobatic skills, they are simply Mother Nature’s finest creations.

According to a study, the population of dolphins in the Indian Ocean may have decreased by more than 80% in recent years due to the estimated 4 million tiny cetaceans that have been taken as "by-catch" in commercial tuna fishing nets since 1950.Up to 100,000 cetaceans, mostly dolphins, were accidentally trapped in commercial gill nets in 2006; the current annual average is around 80,000.

Below are some amazing facts about the dolphins

1. Dolphins are all around the World

September 28, 2022 | by Krishan

All varieties of aquatic habitats are home to almost all dolphin species. oceans, estuaries, freshwater, and even coastal beaches! They can also survive in temperatures ranging from below 0°C to above 30°C.In regions like Eastern Scotland and West Wales, there is a high concentration of bottlenose dolphins in the British Isles. The northernmost pod of bottlenose dolphins in the world is also found in Scotland.

2. Dolphins are more similar to humans

September 29, 2022 | by Krishan

Dolphins give birth to their young in a live birth, just like people do. But the young dolphin's tail comes first, unlike us humans. The gestation period of dolphins ranges from 9 to 17 months, depending on the species. After giving birth, they become excellent mothers, helping their little ones breathe on the surface.Mother dolphins are nurturing mothers, as evidenced by the frequent sightings of mother dolphins snuggling and nestling their young.

3. Dolphins have extraordinary senses

September 29, 2022 | by Krishan

Dolphins don't have a sense of smell, but they more than make up for it with their other senses. They have a remarkable sense of sight, whether they are in or out of the water. Dolphins have an excellent sense of touch as well.They have a very good hearing sense and have a human hearing range that is ten times greater than ours. Dolphins can locate objects far beyond their reach and identify places by employing echolocation, which makes use of sound waves and echoes.

4. Dolphins have warm blood

September 29, 2022 | by Krishan

Dolphins don't have a sense of smell, but they more than make up for it with their other senses. They have a remarkable sense of sight, whether they are in or out of the water. Dolphins have an excellent sense of touch as well.They have a very good hearing sense and have a human hearing range that is ten times greater than ours. Dolphins can locate objects far beyond their reach and identify places by employing echolocation, which makes use of sound waves and echoes.

5. Dolphins are Mammals

September 29, 2022 | by Krishan

Dolphins are not fish, despite the fact that they navigate the ocean's depths smoothly and swim like fish do. Dolphins are mammals, much like manatees, seals, and whales are. Why dolphins are considered mammals? They are independent of gills. They use their lungs to breathe instead. They have live births, as mentioned before, and primarily produce milk to feed their young. There is another factor that causes dolphin mammals to develop hair and have warm blood. They can control their body temperatures even in extremely cold environments, as was already mentioned.

6. Dolphins have lungs, not gills

September 29, 2022 | by Krishan

Being a marine mammal also means having lungs rather than gills. They must surface to breathe fresh air, just like whales and other marine creatures. As a result, as they dive into the depths, their blowholes close, and when they surface to breathe, they open. With just one breath, marine mammals may exchange 80% of the air in their lungs, thanks to adaptations. It's impressive that humans can only convert 17% of air in this setting. Additionally, practically all marine mammals have excellent oxygen reserves thanks to their ability to store oxygen in their lungs, muscles, and even blood! By having the capacity to retain oxygen in various bodily regions.

7. Dolphins have good communicating ability

September 29, 2022 | by Krishan

Dolphins are extremely gregarious animals, and one of their unique characteristics is how effectively they interact with one another. They can communicate using echolocation, squeaks, and social interaction. Dolphins also find means of communication, including clicking, whistles, and slapping the water with their tails.

8. Dolphins only have a few enemies

September 29, 2022 | by Krishan

Of course, dolphins have very few adversaries. However, the main danger to their survival comes from people. The total loss of dolphins over time has been attributed to extensive fishing, dirty seas, the collapse of coral reefs, and targeted fishing. Laws are passed over time to protect and preserve these wonderful creatures. However, tragically, there are still human activities, like as by catches and seasonal exhibits, that should be banned and which contribute to the demise of dolphins.

Dolphins of Sri Lanka

The waters in and around Sri Lanka are home to more than a dozen different species of dolphins, with the dancing spinner being the most well-known due to its lively lifestyle. Smaller fish make up the majority of the dolphin diet. Pods are the norm for dolphin species. Some species may only have ten or twelve members living together, whereas others may swim in schools of several hundred. Dolphin pods are typically matrilineal, made up of a female and her family members. Since there are so many different species of dolphins, they can be found in most bodies of water. Others are shallow-water creatures, while some prefer the deepest ocean depths. Although many dolphin species enjoy the warm waters close to the island, several species prefer frigid water.Below mentioned are some of the Dolphin species that are regularly seen around the seas of Sri Lanka.

9. Bottlenose Dolphin

September 29, 2022 | by Krishan

A species of bottlenose dolphin is the one found in the Indian Ocean. They resemble Common bottlenose dolphins in appearance a great deal. Indian Ocean bottlenose dolphins have longer, slimmer beaks, and a more slender physique. The inhabitants of the Indian Ocean are also a little lighter shade of blue. In general, the cape is easier to distinguish, and a faint spinal blaze extends down to the dorsal fin. Although they are not always present, the most evident distinction can be made by looking at the adult bottlenose dolphins of the Indian Ocean that have black dots or specks on their bellies. Black patches on Common bottlenose dolphins are quite uncommon. The teeth are thinner than those of Common bottlenose dolphins and can range in number from 23 to 29 in both the upper and lower jaws.

10. Risso's dolphin

September 29, 2022 | by Krishan

Different from other dolphins. They have blunt heads, relatively stocky bodies, and no recognizable beak. They are born grey or olive brown, but as they age, they get whiter and whiter due to countless wounds and scratches from other Risso's dolphins and their love of squid. Highly social and very busy. Although they are often boat-shy, Risso's enjoy the company of several other members of their pod, occasionally many, and can be seen leaping out of the water, breaching, tail- and head-slapping, and overall having a great time. Additionally, they are observed interacting with other animals, such as bottlenose dolphins

10. Humpback Dolphin

September 29, 2022 | by Krishan

They are somewhat similar to other 'humpback' dolphin species, with a 'hump' that is more evident than their Indo-Pacific and Australian cousins but less prominent than their Atlantic cousins. A little triangular fin, which varies in size, is present above the 'hump' on all humpback dolphins. These dolphins honor their Latin name, plumba, which means "lead," by being primarily gray in color. Tough. Although they were originally believed to be present throughout their range and in big groups, their numbers have drastically decreased through time, and only small, localized populations are now believed to be left. This decline is really worrying. Populations simply can't take any more strain. Like other humpback dolphin species, Indian Ocean humpback dolphins favor estuary, near shore, and intertidal habitats. They are opportunistic feeders, which means they don't care too much about dinner. Three well-known favorites include mackerel, mullet, and sardines.

They favor the shallow, near shore seas of nations in the Indian Ocean, ideally with a freshwater supply, as has been mentioned. In the southern coastal seas of South Africa, northward around the coast of East Africa, all over the Middle East, and down the west coast of India, they are common. Even though humpback dolphins in the Indian Ocean have only been recognized as a separate species since 2014, they are still considered endangered, and their numbers are declining.

10. Spinner Dolphin

September 29, 2022 | by Krishan

Due to their amazing multi-rotational aerial spinning behavior, spinner dolphins are easily identifiable. When spinner dolphins re-enter the ocean, they make enormous splashes. Spinner dolphins are renowned as expert acrobats in the dolphin kingdom and champion spinners (other dolphins may occasionally spin but only with a couple of revolutions). Seven full rotations of their length have been captured during a single leap. Before emerging head first from the water and leaping up to 3 meters into the air, the spinner begins to spin in the water. After spinning continually before falling back into the water. Spinner dolphins are highly well-liked by dolphin viewers because of their amazing acrobatic behavior.

Spinner dolphins are divided into four recognized subspecies, each of which has a distinct social structure and appearance. The most common subspecies is called "Gray's," and it has a characteristic three-banded coloring with a dark gray back, a lighter gray belly, and a lighter gray flanks. The spinner dolphin subspecies that can be found in the ETP are uniformly dark grey in color.

A long, thin beak, a slender body, short, curving flippers with pointed tips, and a tall triangular dorsal fin are characteristics shared by all spinner dolphin species. Large males in the Eastern Tropical Pacific (ETP) frequently have a dorsal fin that slopes forward, or "back-to-front," in an unexpected way. In general, spinner dolphins follow a daily and nighttime schedule. They snooze in the day in the shallower coastal waters. They move to deeper waters at night to hunt. Late afternoon and early evening, when they have slept and are getting ready to go hunting, is when they prefer to spin. The number of spinner dolphins in a pod can range from fewer than fifty to thousands. The many spinner dolphin species have quite distinct social structures. In some populations, dolphin groups may combine and divide under fluid patterns. Others spend many years in dependable pods. Spinner dolphins consume tiny fish, shrimp, and squid as part of a surprisingly diverse diet. At night, when their prey is largely migrating up the water column, dolphins seek their prey in mid-water depths.

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