
Sharon Oosthoek is a freelance science journalist who lives in Toronto, Canada. She has written about how bed bugs have favorite colors, why your shoelaces untie themselves and how chicken cologne can protect you from malaria.
She likes writing for young readers. They ask good questions, like how do scientists know the Earth is warming?
Sharon also writes for adults. Her articles have appeared in New Scientist, Canadian Geographic, Maclean’s, The Globe and Mail, cbc.ca and Chemical & Engineering News. She is the winner of an American Academy for the Advancement of Science Kavli Science Journalism Award for children’s science writing.

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All Stories by Sharon Oosthoek
- Health & Medicine
Warning! Junk foods can harm a teen’s brain
The adolescent brain has a hard time resisting junk food. But high-fat, high-sugar diets can interfere with learning and pose risks to mental health.
- Animals
Learning what stresses queen bees could save their hives
Beehives often die off after the queen gets too stressed to make enough babies. New tests could identify what stressed her — and point to solutions.
- Environment
Washing your jeans too much might pose risks to the environment
Jeans shed thousands of denim fibers in every wash. Those fibers, and the chemicals used to treat them, now are showing up in even the Arctic Ocean.
- Humans
Changing climates can take cooling tips from warm regions
When summer heat waves hit northern cities, people might look to keep cool using tropical building strategies — and forgotten architectural wisdom.
- Animals
Quacks and toots help young honeybee queens avoid deadly duels
It’s not just ducks that quack. Honey bees do it too. They also toot. Researchers eavesdropped on hives to find out why.
- Animals
Viral scents? Dogs sniff out coronavirus in human sweat
Researchers train dogs to sniff out COVID-19. In the United Arab Emirates, sniffer dogs have already begun identifying infected passengers at airports.
- Earth
Help for a world drowning in microplastics
Microplastic pollution in our oceans and lakes is a problem. Scientists are testing solutions — from more biodegradable recipes to nanotechnology.
- Earth
Earthworms lose weight in soils polluted with microplastics
Bits of plastic pollution in the ground caused earthworms to lose weight. That could hurt the worms’ ability to make soil healthy, and may explain why plants were stunted.
- Plants
Meat-eating pitcher plants feast on baby salamanders
Scientists didn’t think meat-eating plants in North America ate vertebrates. They now know differently.
- Health & Medicine
Tiny vest could help sick babies breathe easier
A new invention helps sick babies breathe easier. It looks like a tiny lifejacket and it avoids the mask and tubes that get in the way of breastfeeding.
- Earth
Americans consume some 70,000 microplastic particles a year
The average American consumes more than 70,000 microplastic particles a year. Scientists hope this estimate will spur others to look at health risks.
- Environment
City living makes trees grow fast but die young
Many cities plant trees to absorb carbon dioxide. But city trees grow fast and die young, which means they absorb less carbon dioxide than forest trees do.