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    coral reefs

    US

    ・

    UK

    A1
    n. pl.Noun (plural)Underwater ecosystems formed from colonies of coral polyps held together by calcium carbonate.
    Coral reefs are home to a vast array of marine life.

    Video subtitles

    All about Oceania | Learn about this beautiful region in the Pacific Ocean

    07:57All about Oceania | Learn about this beautiful region in the Pacific Ocean
    • Even though the original settlers had a common culture, each island began to develop a culture unique to its specific region. Because of this migration, Oceania is one of the most culturally diverse areas on Earth. Oceania is also one of the most environmentally diverse and sensitive areas on the planet, and contains some of the most beautiful coral reefs in the world, including the Great Barrier Reef, which is vital to the Earth's climate.

      Even though the original settlers had a common culture, each island began to develop a culture unique to its specific region. Because of this migration, Oceania is one of the most culturally diverse areas on Earth. Oceania is also one of the most environmentally diverse and sensitive areas on the planet, and contains some of the most beautiful coral reefs in the world, including the Great Barrier Reef, which is vital to the Earth's climate.

    • Oceania is also one of the most environmentally diverse and sensitive areas on the planet and contains some of the most beautiful coral reefs in the world, including the Great Barrier Reef, which is vital to the Earth's climate!

      Oceania is also one of the most environmentally diverse and sensitive areas on the planet and contains some of the most beautiful coral reefs in the world, including the Great Barrier Reef, which is vital to the Earth's climate!

    B1

    The Deep Ocean Noises We Still Can’t Identify

    15:50The Deep Ocean Noises We Still Can’t Identify
    • For example, it took years for scientists to figure out that the crackling sound that they heard near coral reefs was made by snapping shrimp, whose claws produce a loud snap when they snap them shut fast enough to create a projectile, lethal bubble they use for hunting.

      For example, it took years for scientists to figure out that the crackling sound that they heard near coral reefs was made by snapping shrimp, whose claws produce a loud snap when they snap them shut fast enough to create a projectile, lethal bubble they use for hunting.

    • There are also daily choruses in coral reefs around the world, when the intensity of sound increases by two to three orders of magnitude after sunset and just before sunrise.

      There are also daily choruses in coral reefs around the world, when the intensity of sound increases by two to three orders of magnitude after sunset and just before sunrise.

    B1

    EMPTY OCEANS: Is The World Running Out Of Fish?

    17:00EMPTY OCEANS: Is The World Running Out Of Fish?
    • The 2013 State of the Ocean report stated, "Not only are we already experiencing severe declines in many species to the point of commercial extinction in some cases and an unparalleled rate of regional extinctions of habitat types, we now face losing marine species and entire marine ecosystems such as coral reefs within a single generation.

      The 2013 State of the Ocean report stated, "Not only are we already experiencing severe declines in many species to the point of commercial extinction in some cases and an unparalleled rate of regional extinctions of habitat types, we now face losing marine species and entire marine ecosystems such as coral reefs within a single generation.

    • species and entire marine ecosystems, such as coral reefs, within a single generation.

      species and entire marine ecosystems, such as coral reefs, within a single generation.

    B1

    ジェフリー・エプスタインの悪名高き「ペドフィリアの島」の秘密に迫る。| WIRED Japan

    08:44ジェフリー・エプスタインの悪名高き「ペドフィリアの島」の秘密に迫る。| WIRED Japan
    • He had hoped to develop it, but was met with legal challenges after damaging the island's coral reefs and protected habitats.

      He had hoped to develop it, but was met with legal challenges after damaging the island's coral reefs and protected habitats.

    • He had hoped to develop it but was met with legal challenges after damaging the island's coral reefs and protected habitats.

      He had hoped to develop it but was met with legal challenges after damaging the island's coral reefs and protected habitats.

    B1

    Geography of Papua New Guinea: The Most Interesting Country in the World?

    12:44Geography of Papua New Guinea: The Most Interesting Country in the World?
    • The surrounding coral reefs are part of the Coral Triangle, also known as the Amazon of the Seas.

      The surrounding coral reefs are part of the Coral Triangle, also known as the Amazon of the Seas.

    • The surrounding coral reefs are part of the Coral Triangle, also known as the Amazon of the Seas.

      The surrounding coral reefs are part of the Coral Triangle, also known as the Amazon of the Seas.

    B1

    The NFL star working to combat childhood illiteracy | September 25, 2025

    10:01The NFL star working to combat childhood illiteracy | September 25, 2025
    • A month-long toxic algae bloom is devastating South Australia's coral reefs.

      A month-long toxic algae bloom is devastating South Australia's coral reefs.

    • A month-long toxic algae bloom is devastating South Australia's coral reefs.

      A month-long toxic algae bloom is devastating South Australia's coral reefs.

    B1

    We are the Gods Now - Jason Silva at Sydney Opera House

    37:02We are the Gods Now - Jason Silva at Sydney Opera House
    • It has to do with the diversity and the collision of ideas and the amount of idea sex that's happening in cities as comparable to coral reefs.

      It has to do with the diversity and the collision of ideas and the amount of idea sex that's happening in cities as comparable to coral reefs.

    • that's happening in cities as comparable to coral reefs.

      that's happening in cities as comparable to coral reefs.

    B1

    Top 10 Signs That GLOBAL WARMING Is NO LONGER A Debate

    09:59Top 10 Signs That GLOBAL WARMING Is NO LONGER A Debate
    • Ecosystems like coral reefs are becoming bleached and dying from pathogens that thrive in warm waters.

      Ecosystems like coral reefs are becoming bleached and dying from pathogens that thrive in warm waters.

    • become more widespread with warmer climates; ecosystems like coral reefs are becoming bleached

      become more widespread with warmer climates; ecosystems like coral reefs are becoming bleached

    B2

    Plastic pollution: is it really that bad? | The Economist

    02:36Plastic pollution: is it really that bad? | The Economist
    • Ocean acidification, the result of man-made carbon dioxide emissions, is disastrous for coral reefs and many other forms of sea life.

      Ocean acidification, the result of man-made carbon dioxide emissions, is disastrous for coral reefs and many other forms of sea life.

    • Ocean acidification, the results of man made carbon dioxide emissions, is disastrous for coral reefs and many other forms of sea life.

      Ocean acidification, the results of man made carbon dioxide emissions, is disastrous for coral reefs and many other forms of sea life.

    B1

    My Neighborhood

    02:00My Neighborhood
    • As you know, my neighborhood is located in Đồng Tháp province, which is known for its quiet streets, green fields, orchards, especially durians for my love, jackfruit, and its rich coral reefs.

      As you know, my neighborhood is located in Đồng Tháp province, which is known for its quiet streets, green fields, orchards, especially durians for my love, jackfruit, and its rich coral reefs.

    B1