Search Results for: Fish

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8,043 results
  1. A close up photo of several ghost catfish swimming on a black background while a light is shining on some of their scales which appear iridescent.
    Animals

    These transparent fish turn rainbow with white light. Now, we know why

    Repeated structures in the ghost catfish’s muscles separate white light that passes through their bodies into different wavelengths.

    By McKenzie Prillaman

  2. Readers discuss swimming sperm, a fishing fox and more

    By Science News Staff
  3. A shiver of scalloped hammerhead sharks swim near the surface, in this underwater photograph. These endotherms may thermoregulate by closing their gills as they go deeper.
    Animals

    Why some hammerhead sharks seem to ‘hold their breath’ during dives

    Scalloped hammerhead sharks in Hawaii seem to limit the use of their gills during deep dives to prevent losing heat to their surroundings.

    By Freda Kreier
  4. Two scuba divers investigating a coral reef
    Life

    Coral reefs host millions of bacteria, revealing Earth’s hidden biodiversity

    A new estimate of microbial life living in Pacific reefs is similar to global counts, suggesting many more microbes call Earth home than thought.

    By Erin Garcia de Jesús
  5. In this underwater photo, Marine biologist Jessica Pate swims beside a large oceanic manta ray.
    Animals

    This marine biologist is on a mission to save endangered rays

    Jessica Pate and the Florida Manta Project confirm that endangered mantas are mating and sicklefin devils are migrating along the East Coast.

    By Brianna Randall
  6. A close up photo of a clear liquid forming a bubble on what appears to be a black and gold circuit board.
    Health & Medicine

    A gel cocktail uses the body’s sugars to ‘grow’ electrodes in living fish

    A chemical reaction with the body’s own sugars turned a gel cocktail into a conducting material inside zebrafish brains, hearts and tail fins.

    By Simon Makin
  7. A photo of a bluestreak cleaner wrasse.
    Animals

    Fish can recognize themselves in photos, further evidence they may be self-aware

    Cleaner fish recognize themselves in mirrors and photos, suggesting that far more animals may be self-aware than previously thought.

    By Betsy Mason
  8. An image of a rainbow tie dye background with two frogs, ants, fish and coral overlays.
    Animals

    The Sonoran Desert toad can alter your mind — it’s not the only animal

    Their psychedelic and other potentially mind-bending compounds didn't evolve to give people a trip.

    By Deborah Balthazar
  9. A photo of a small purple fist swimming near some plant life and what appears to be a robot arm.
    Animals

    A ‘fire wolf’ fish could expand what we know about one unusual deep-sea ecosystem

    Unlike other known methane seeps, Jacó Scar is slightly warmer than the surrounding water and is a home for both cold-loving and heat-loving organisms.

    By Darren Incorvaia

  10. Good with tools? You may be a cockatoo

    Editor in chief Nancy Shute talks about smart animals, from tool-using cockatoos to "self-aware" fish.

    By Nancy Shute
  11. Two orca whales breaching.
    Life

    Orca moms baby their adult sons. That favoritism pays off — eventually

    By sharing fish with their adult sons, orca moms may skimp on nutrition, cutting their chances of more offspring but boosting the odds for grandwhales.

    By Susan Milius
  12. An underwater photo of two researchers diving beside a female whale shark.
    Oceans

    ‘Jet packs’ and ultrasounds could reveal secrets of pregnant whale sharks

    Only one pregnant whale shark has ever been studied. New underwater techniques using ultrasound and blood tests could change that.

    By Brianna Randall