Animals
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AnimalsPolar bears swim for days as sea ice retreats
Melting sea ice is forcing polar bears to swim long distances — up to nine days in one case. Such long treks may be more than the bears can handle.
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AnimalsMale peacocks twerk it to bring in the hens
Scientists recorded peacocks with high-speed video cameras to learn the basic mechanics behind the shows they put on for peahens.
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AnimalsSnakes go dark to soak in the sun
Snakes are paler in the South and darker in the North. The darker species absorb heat more quickly, a teen showed.
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AnimalsDragons sleep like mammals and birds
Lizards seem to alternate between two sleep states, just as mammals and birds do. This finding could change our understanding of how sleep evolved.
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AnimalsScientists Say: Copepod
Copepods are tiny crustaceans. They eat phytoplankton and float in the water column, although some live in freshwater and on the sea floor.
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AnimalsWhat medicine can learn from squid teeth
Scientists have identified what makes a squid's sucker teeth so strong. The findings may one day prove useful in medicine.
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AnimalsInsects can patch their broken ‘bones’
When insects suffer wounds, they can mend their ‘skeleton’ with a patch on the inside. This makes the leg strong again, new data show.
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AnimalsPollen can become bee ‘junk food’ as CO2 rises
Increasing levels of the greenhouse gas are changing diminishing the food value of pollen, bees’ only source of protein.
By Susan Milius -
AnimalsSpiders eat insects — and sometimes veggies
Plant-eating spiders have been found on every continent except Antarctica, a new study notes.
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AnimalsLess brilliant flowers still keep bees coming back
Bumblebees prefer petals that aren’t overly shimmery. This suggests plants are attuned to what insects see.
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AnimalsCool Jobs: Pet science
Pets make great subjects for research. These scientists work to make our animals — and us — healthier and happier.
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AnimalsParasites give brine shrimp super powers
When infected with parasitic worms, brine shrimp survive better in waters laced with toxic arsenic, a new study finds.