All Stories by Sarah Schwartz
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PlantsScary tomato appears to bleed
A new species of Australian bush tomato bleeds when injured and turns bony in old age.
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Health & MedicineEarly work on human growth hormone paved way for synthetic versions
In 1966, researchers reported the complete chemical structure of human growth hormone. Today synthetic growth hormone is used to treat growth hormone deficiency.
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LifeHow to trap sperm
Lab-made beads can trick and trap sperm, potentially preventing pregnancy or selecting sperm for fertility treatments.
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MicrobesLeptospirosis bacterium still haunts swimming holes
Bacterial scourges lurk in warm recreational waters.
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AnimalsDragons sleep like mammals and birds
Some lizards may sleep in the same way as mammals and birds, a new brain wave study finds.
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LifeBacteria use cool trick to make ice
By reordering nearby water molecules, Pseudomonas syringae bacteria can make ice.
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AgricultureBacterium still a major source of crop pesticide
Bacillus thuringiensis bacteria have provided pest-fighting toxins for over 50 years.
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Health & MedicineClusters of cancer cells get around by moving single file
Clusters of cancer cells squeeze through thin blood vessels by aligning single file.
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EcosystemsHeat may outpace corals’ ability to cope
Corals may soon lose their ability to withstand warming waters.
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LifeTyphoid toxin aids survival in mice
A DNA-damaging bacterial protein may prolong the lives of infected animals.
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MicrobesThis microbe makes a meal of plastic
A newly identified bacterium can break down plastic waste.
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AnimalsAnt antennae provide chemical ID
Ants use their antennae to identify nest-mates and potential invaders. But antennae also produce the key compounds that ants use to tell friend from foe.