Search Results for: Whale
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Paleontology
Megalodon sharks may have become megapredators by running hot
O. megalodon sharks were warm-blooded megapredators. But colder-blooded great white sharks may have had an evolutionary edge when food sources dwindled.
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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 -
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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The animal kingdom never ceases to amaze
Editor in chief Nancy Shute revels in the wonder of animals, from psychedelic toads to extinct pterosaurs.
By Nancy Shute -
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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Animals
Whale sharks may be the world’s largest omnivores
An analysis of the sharks’ skin shows that the animals eat and digest algae.
By Freda Kreier -
Planetary Science
The desert planet in ‘Dune’ is plausible, according to science
Humans could live on the fictional planet Arrakis from Dune but (thankfully) no giant sandworms would menace them.
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Animals
Does this drone image show a newborn white shark? Experts aren’t sure
If a claim of the first-ever sighting of a newborn white shark holds, it could help solve a mystery of where adult white sharks give birth.
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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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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.
By Jake Buehler -
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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Paleontology
The real culprit in a 19th century dinosaur whodunit is finally revealed
Contrary to the stories handed down among paleontologists, creationism wasn’t to blame for the destruction of Central Park’s dinosaurs.
By Freda Kreier