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Bottlenose dolphin

life science Maturity 7-9 Next article →

The bottlenose dolphin is a smart, toothed whale.

Tursiops aduncus
Tursiops aduncus

These animals live in warm and temperate seas all over the world. You can find them almost everywhere except for the cold Arctic and Antarctic regions. They belong to a group called Delphinidae, which are oceanic dolphins. Scientists use DNA studies to group them into different species. One is the common bottlenose dolphin, or Tursiops truncatus. Another is the Indo-Pacific bottlenose dolphin, known as Tursiops aduncus.

Bottlenose dolphin mother and juvenile
Bottlenose dolphin mother and juvenile

Scientists even found a third species called Tamanend's bottlenose dolphin in 2011. This dolphin lives in the lakes of Victoria, Australia.

Dolphins have many ways to interact with their world. They use a special way of seeing called echolocation. The dolphin sends out clicking sounds in a beam in front of it. These sounds hit objects like rocks or fish and bounce back. The dolphin listens to these echoes through its lower jaw. This helps the dolphin make a sound picture of its target. Echolocation tells them the size, speed, and distance of an object.

Bottlenose Dolphin KSC04pd0178 head only
Bottlenose Dolphin KSC04pd0178 head only

They also have a sense called electroreception. Newborn calves have tiny whiskers on their snout to help them feel things. These whiskers fall off soon after they are born.

Humans and dolphins have a long history of meeting. Some dolphins are famous from television shows like Flipper. Because they are so smart, people have trained them for jobs. The military uses them to find sea mines or divers.

Military-trained-dolphin
Military-trained-dolphin

In some places, dolphins help local fishermen catch fish. They drive fish into nets and eat the ones that escape. However, some human actions can hurt them too. People sometimes hunt them for food. They can also get caught in crab traps or tuna fishing gear.

Dolphins have very interesting bodies that help them swim. They have a long snout called a rostrum. On top of their head, they have a blowhole to breathe. To move, they move their tail lobes, called flukes, up and down. They use side fins, called pectoral flippers, to steer.

Dolphin at Dalkey Island
Dolphin at Dalkey Island

Their color is a type of camouflage called countershading. This means they are dark on the back and light on the sides. This helps them hide in the ocean. Most bottlenose dolphins can live for more than 40 years. Some females have even lived past 60 years!

You might recognize dolphins from many different places. You may have seen them in aquarium shows. Some special hybrids, like the wholphin, live in places like Hawaii.

Baby wolphin by pinhole
Baby wolphin by pinhole

A wholphin is a mix between a bottlenose dolphin and a false killer whale. These animals are part of a very old family. Fossil evidence shows that dolphin ancestors lived a long time ago. Some fossils, like Tursiops osennae, were found in Italy. These fossils help us understand how dolphins changed over millions of years. It is amazing to think how much they have learned.

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🖼️ Images & Media (12)
File:Tursiops aduncus.JPG
Tursiops aduncus.JPG
File:Baby wolphin by pinhole.jpeg
Baby wolphin by pinhole.jpeg
File:Tursiops-osennaeBologna.JPG
Tursiops-osennaeBologna.JPG
File:Bottlenose Dolphin KSC04pd0178 head only.JPG
Bottlenose Dolphin KSC04pd0178 head only.JPG
File:Dolphin at Dalkey Island.jpg
Dolphin at Dalkey Island.jpg
File:Military-trained-dolphin.jpg
Military-trained-dolphin.jpg
File:Bottlenose dolphin mother and juvenile.jpg
Bottlenose dolphin mother and juvenile.jpg
File:Bottlenose dolphin with young.JPG
Bottlenose dolphin with young.JPG
File:2005-05-n2-2550.jpg
2005-05-n2-2550.jpg
File:Bottlenose Dolphin -Notojima Aquarium -Ishikawa -Japan-8a.jpg
Bottlenose Dolphin -Notojima Aquarium...
File:NMMP dolphin with locator.jpeg
NMMP dolphin with locator.jpeg
File:Dolphinjf.JPG
Dolphinjf.JPG
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