Does chicken soup really help when you’re sick?
A bowl of chicken soup typically contains protein, vegetables and soothing broth. Westend61 via Getty Images Colby Teeman, University of...
Question
Why is turkey the main dish on Thanksgiving?
Turkeys have always been a fixture in the holiday’s marketing. Transcendental Graphics/Getty Images Troy Bickham, Texas A&M University Curious Kids...
When was talking invented? A language scientist explains how this unique feature of human beings may have evolved
Humans are the only animals that express their thoughts in full sentences. Oliver Rossi/DigitalVision via Getty Images Richard Futrell, University...
Why do hammerhead sharks have hammer-shaped heads?
A great hammerhead shark’s two eyes can be 3 feet apart on opposite sides of its skull. Ken Kiefer 2/Image...
What do molecules look like?
A nanographene molecule imaged by noncontact atomic force microscopy. Patrik Tschudin/gross3HR/Wikimedia Commons, CC BY Christine Helms, University of Richmond Curious...
Why do kids have to go to school?
The core of education is to enable young learners to be kind, giving members of society. David Brewster/Star Tribune via...
Why does the Moon look close some nights and far away on other nights?
The Moon often looks enormous when it first rises because of what is known as the Moon illusion. Roadcrusher/Wikimedia Commons,...
If plastic comes from oil and gas, which come originally from plants, why isn’t it biodegradable?
Plastic trash accumulates in trees and shrubs along the Los Angeles River. Citizen of the Planet/Education Images/Universal Images Group via...
Where was the world’s first zoo?
Where was the world’s first zoo? Interior view of Polito’s Royal Menagerie, Exeter Change, Strand, Westminster, London, 1812. Heritage Images/Hulton Archives...
What does an octopus eat? For a creature with a brain in each arm, whatever’s within reach
Don’t call them tentacles: An octopus has eight arms. TheSP4N1SH/iStock via Getty Images Plus Erin Spencer, Florida International University and...
What do tornadoes look like on the inside?
What do tornadoes look like on the inside? A tornado in Turkey, Texas. Jana Houser, CC BY-ND Jana Houser, Ohio University...
Is it possible to heal the damage we have already done to the Earth?
Is it possible to heal the damage we have already done to the Earth? The Earth viewed from the Apollo 8...
Why do flocks of birds swoop and swirl together in the sky?
Murmurations can have as many as 750,000 birds flying in unison. mikedabell/iStock via Getty Images Tom Langen, Clarkson University Why...
Deer have antlers, walruses have tusks – here’s why so few birds have weapons of their own
Deer have antlers, walruses have tusks – here’s why so few birds have weapons of their own There’s plenty of aggression...
What’s insider trading and why it’s a big problem
Gordon Gekko of ‘Wall Street’ may be the fictional face of insider trading. Ilona Gaynor/flickr, CC BY-NC-SA Alexander Kurov, West...
Why do we bleed?
Why do we bleed? A hematologist explains how the body prevents blood loss after injury The body starts plugging up wounds...
How many bones do penguins have?
How many bones do penguins have? Specialized anatomy means flightless penguins are master swimmers. Christopher Michel , CC BY-SA Julie...
What is 5G? An electrical engineer explains
Telecommunications companies around the world are expanding their next-generation, or 5G, networks. Guo Shining/VCG via Getty Images Prasenjit Mitra,...
Why can’t we throw all our trash into a volcano and burn it up?
Lava flows from a fissure in the aftermath of eruptions from the Kilauea volcano on Hawaii’s Big Island, May 22,...
How common is the ‘Common Era?’ How A.D. and C.E. took over counting years
How common is the ‘Common Era?’ How A.D. and C.E. took over counting years How common is the ‘Common Era?’ How...
Why is my poop brown?
Why is my poop brown? Brown poop can indicate good health. Vitalii Barida/iStock via Getty Images Plus Hannibal Person, University of...
