Search Results for: Whales

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1,353 results
  1. 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.

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  2. 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.

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  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.

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  4. A fisher stands in waist-deep water with a fishing line as he looks at a dolphin breaking through the surface
    Animals

    Here are 3 people-animal collaborations besides dolphins and Brazilians

    Dolphins working with people to catch fish recently made a big splash. But humans and other animals have cooperated throughout history.

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  5. photo of six gray sperm whales diving down from the ocean surface
    Animals

    ‘Wonderful nets’ of blood vessels protect dolphin and whale brains during dives

    Complex networks of blood vessels called retia mirabilia that are associated with cetaceans’ brains and spines have long been a mystery.

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  6. Tropical fish biologist Mark Meekan, in a dive suit, swims near the nose of a whale shark.
    Animals

    Whale sharks may be the world’s largest omnivores

    An analysis of the sharks’ skin shows that the animals eat and digest algae.

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  7. The animal kingdom never ceases to amaze

    Editor in chief Nancy Shute revels in the wonder of animals, from psychedelic toads to extinct pterosaurs.

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  8. A photo of a northern elephant seal poking its head out of the water.
    Animals

    Northern elephant seals sleep just two hours a day at sea

    The marine mammals have truly awesome stamina for staying awake, sleeping only minutes at a time on months-long trips at sea.

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  9. A cluster of greater horseshoe bats hanging upside down in a cave
    Life

    Mammals that live in groups may live longer, longevity research suggests

    An analysis of nearly 1,000 mammal species reveals that the evolution of mammals’ social lives and life spans could be linked.

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  10. An illustration of Shonisaurus popularis, ancient dolphinlike reptiles, swimming in water
    Paleontology

    Mysterious ichthyosaur graveyard may have been a breeding ground

    Some 230 million years ago, massive dolphinlike reptiles gathered to breed in safe waters — just like many modern whales do, a study finds.

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  11. a photo of a jojoba shrub branch of with green acorn shaped seeds hanging off of it

    50 years ago, scientists thought a desert shrub might help save endangered whales

    Fifty years ago, scientists sought a sustainable alternative to prized oil from endangered sperm whales.

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  12. photo of orcas stripping the flesh off a blue whale calf’s flank
    Animals

    Gory footage confirms orca pods can kill adult blue whales

    For the first time, three recorded events show that orcas do hunt and eat blue whales using coordinated attacks that have worked on other large whales.

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