Search Results for: Dolphins

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444 results

444 results for: Dolphins

  1. Animals

    Snot could be crucial to dolphin echolocation

    An acoustic model reveals that echolocation relies on mucus lined tissue lumps in the animal’s nasal passage.

    By Helen Thompson

  2. For harbor porpoises, the ocean is a 24-hour buffet

    Scientists tagged harbor porpoises with monitoring equipment and found that the small cetaceans eat thousands of fish throughout the day.

    By Sarah Zielinski
  3. Animals

    Whales are full of toxic chemicals

    For decades, scientists have been finding troublesome levels of PCBs, mercury and other toxic chemicals in whales and dolphins.

    By Sarah Zielinski
  4. Paleontology

    New dolphin fossil makes a splash

    A newly discovered dolphin fossil provides clues to the evolution of river dolphins in the Americas.

    By Helen Thompson
  5. Paleontology

    New dolphin fossil makes a splash

    A newly discovered dolphin fossil provides clues to the evolution of river dolphins in the Americas.

    By Helen Thompson
  6. Paleontology

    New fossil suggests echolocation evolved early in whales

    A 27-million-year-old whale fossil sheds light on echolocation’s beginnings.

    By Helen Thompson
  7. Environment

    PCB levels still high in Europe’s killer whales, smaller dolphins

    PCBs banned for decades still show up at extremely high concentrations in Europe’s killer whales and other dolphins.

    By Susan Milius
  8. Anthropology

    Humans, birds communicate to collaborate

    Bird species takes hunter-gatherers to honeybees’ nests when called on.

    By Bruce Bower
  9. Paleontology

    Ancient armored fish revises early history of jaws

    The fossil of a 423-million-year-old armored fish from China suggests that the jaws of all modern land vertebrates and bony fish originated in a bizarre group of animals called placoderms.

    By Meghan Rosen
  10. Animals

    Eyewitness account of a dolphin birth takes a dark turn

    Scientists witnessed the first wild birth of a bottlenose dolphin — and an attempt at infanticide.

    By Sarah Zielinski
  11. Environment

    Rising dolphin deaths linked to Deepwater Horizon spill

    Lung lesions and other injuries link an extensive die-off of dolphins in the Gulf of Mexico to the 2010 Deepwater Horizon oil spill.

    By Beth Mole
  12. Astronomy

    The votes are in: Exoplanets get new names

    Arion, Galileo and Poltergeist are just three winners of a contest to name planets and suns in 20 solar systems.

    By Christopher Crockett