Marine life

  • The wonders of seagrasses

    They help fight marine plastic pollution, study finds.

    Marine ecosystems are incredible. Although they’ve been besieged by plastic – among many other human-generated challe...

    Marine life January 15, 2021
  • Fish, undammed

    Ingenious tube systems could reconnect ailing fish populations.

    You wouldn’t be a freshwater fish for quids in this world. As human culture and ingenuity has progressed, the cons...

    Marine life January 7, 2021
  • Humans have dogs, fish have shrimp

    We may not be only species to domesticate others.

    Researchers have discovered that a species of coral fish uses shrimp to help fertilise its algae farms, which, they s...

    Marine life December 15, 2020
  • Magazine

    Do fish dream?

    Research certainly suggests they’re self aware.

    By James Bradley A century ago the German biologist Jakob von Uexküll coined the term umwelt – literally “surround...

    Marine life December 9, 2020
  • Scientists go fishing for fish DNA

    eDNA reveals species abundance as well as variety.

    It seems you can tell how many fish there are in the sea (or at least a part of it) from what they leave behind. I...

    Marine life December 8, 2020
  • Genes help some coral cope with low oxygen

    Researchers study varied stress susceptibility on reefs.

    Low oxygen levels in the ocean prevent coral from respiring properly and could be as much of a threat to the world’s ...

    Marine life November 18, 2020
  • Conversation

    Sea sponge with quite a story to tell

    Unravelling a very old mystery of evolution.

    By Emily S Wong, UNSW, Australia Many human traits, such as height and disease susceptibility, depend on genes tha...

    Nature November 16, 2020
  • Rare Bigfin Squid in Australian waters

    Scientists record some striking footage.

    Australia is home to a host of weird and wonderful creatures, and now it can add the rare Bigfin Squid to its invento...

    Marine life November 12, 2020
  • Some (coral) like it hot

    New CRISPR technique isolates heat tolerance gene.

    Warming oceans are bad news for coral, but an improved CRISPR-Cas9 technique has revealed a “heat shield” gene that c...

    Marine life November 11, 2020
  • How crown-of-thorns starfish get around

    Homing behaviours linked to coral abundance.

    Marine time-lapse photography has given scientists more clues to the movements and habits of crown-of-thorns starfish...

    Marine life November 5, 2020
  • Focus

    Cosmos Q&A: Saving our fishes

    There’s much to learn about life in inland waterways.

    Australian freshwater fishes have a tough time of it. The thing they most need – water – is regularly in short supply...

    Marine life October 9, 2020
  • Yes, megalodons were really big

    Researchers confirm gigantism of the extinct species.

    The megalodon (Otodus megalodon) has a long-standing reputation as one of the largest sharks to have roamed the ocean...

    Marine life October 6, 2020
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