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  • Dolphins are extremely intelligent mammals which are part of the family that include

  • pilot whales and Orcas.

  • The are found around the world and in shallow waters around the continental shelves.

  • Dolphins are carnivores that mainly eat squid and crustaceans.

  • They are generally grey in colour with darker backs and lighter undersides.

  • They use echolocation to help them hunt and navigate the oceans. They listen for echoes

  • and their senses help to guide them around.

  • They are very agile creatures and are known for their playful behaviour.

  • In order to view their surroundings, they will spy-hop which is where they will rise

  • up vertically out of the water.

  • It is thought that dolphins look to conserve their energy by swimming alongside ships,

  • a practice known as bow riding.

  • They are social animals and will live in groups together often synchronising their movements

  • with one another. By being in groups, they can hunt more effectively and protect one

  • another.

  • In order that they can sleep half of a dolphins brain is asleep whilst the other half stays

  • awake so they can continue to breathe and stop from drowning.

  • Dolphins tend to mate throughout the year but there are seasonal peaks in spring and

  • fall.

  • Depending on the species, they will have a gestation period of between 9 and 17 months

  • and by the time they are ready to give birth, they will distance themselves from the rest

  • of the pod and travel towards the surface and give birth.

  • Dolphins will usually give birth to one calf a year. Twins have been evidenced but are

  • rare in the Dolphin world as soon as a calf is born it will be taken to the surface so

  • it can breathe.

  • The Dolphin will nurse the calf for between 11 months to 2 years. Once it has been nursed

  • it will stay with its mother for anything between 3 and 8 years old.

Dolphins are extremely intelligent mammals which are part of the family that include

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イルカの事実。イルカについての14の事実 (Dolphin Facts: 14 facts about Dolphins)

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    南一 に公開 2021 年 01 月 14 日
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