Plants
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PlantsScientists Say: Bromeliad
Bromeliads are plants with long spiky leaves. They are common houseplants, and we even see one in the grocery store — the pineapple.
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EarthHouseplants suck up air pollutants that can sicken people
Certain indoor air pollutants can sicken people. But some houseplants can remove those chemicals from a room’s air, new data show.
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PlantsScientists Say: Chlorophyll
Plants can make energy out of sunlight, all thanks to a pigment called chlorophyll.
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AgricultureSneaky! Virus sickens plants, but helps them multiply
The cucumber mosaic virus helps tomato plants lure pollinators. When the plants multiply, the virus now gets new hosts.
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GeneticsYoung sunflowers keep time
The plants don’t just use light to follow the sun. An internal clock helps their stems bend as the sun moves across the sky.
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AnimalsPlants, animals adapt to city living
Cities have turned into experiments in evolution for both plants and animals, from the taste of clover to the stickiness of lizards’ toes.
By Susan Milius -
ClimateClimate closing the gender gap for this mountain flower
Among valerian plants, males like it hotter than the females do. So a warming climate has been speeding their migration up once-cool mountainsides.
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ChemistryIdentifying ancient trees from their amber
A Swedish teen’s analyses of a sample of amber may have uncovered a previously unknown type of ancient tree.
By Sid Perkins -
PlantsNew species of terrifying tomato appears to bleed
A new species of Australian bush tomato bleeds when injured and turns bony in old age.
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AnimalsCommon plant could help fight Zika virus
A teen discovered that extracts from leaves of the San Francisco plant (Codiaeum variegatum) kill larvae of the mosquito that helps spread the Zika and dengue fever viruses.
By Sid Perkins -
Health & MedicineThe cool science of hot peppers
Why are chili peppers spicy? Why does anyone crave food that burns? Uncovering this fiery veggie’s secrets could help fight pain and obesity.
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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