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The more energy a creature uses, the more free radicals and other unstable, cell-damaging molecules its body produces. In many cases this can shorten the lifespan of the animal, but in the case of some butterflies, the opposite seems to be true.
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The Australian heat wave is getting so hot that Australia’s Bureau of Meteorology had to add new colors to its weather map. There are parts of Australia that have achieved temperatures above 122ºF (50ºC), temperatures which were off the scale until recently.
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US fisheries scientists are claiming that a supervisor threatened to eliminate their research division after the team had produced controversial model predictions of the survival and recovery of the threatened coho salmon (Oncorhynchus kisutch).
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The marine eels and other members of the Superorder Elopomorpha have a leptocephalus larval stage, which are flat and transparent. This group is quite diverse, containing 801 species in 24 orders, 24 families and 156 genera. They arose in the Cretaceous period 140 million years ago.
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Fireflies have inspired scientists to modify LEDs so that they are more than one and a half times more efficient. Researchers have studied the internal structure of firefly lanterns, the organs responsible for the insects’ bioluminescence.
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In Pakistan, nine health workers were killed last year. They were administering the polio vaccine, which has been cast by the Taliban as a plot against Islam. This is because the CIA used vaccination programs to get close to Osama bin Laden.
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Genome-sequencing data indicates that sponges were preceded by ctenophores, complex marine predators also called comb jellies.
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Astronomers have discovered one of the oldest stars in the known universe. They believe it is at least 13.2 billion years old and formed shortly after the Big Bang.
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Scientists have invented a nanomachine that mimics the function of the ribosome, which is the molecular machine that translates the genetic code into the body’s proteins.
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The most common STIs in the USA, chlamydia and gonorrhea, are usually easy to eradicate thanks to doses of oral antibiotics, but now gonorrhea is getting more resistant to first line defense drugs.
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