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Illustration of a person on a ladder inspecting a person who is also getting their temperature read with a thermometer (Credit: Serenity Strull)
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Should you always treat a fever?

By Malu Cursino

After a few minutes in warm water, the skin on our fingertips wrinkles like a shrivelled prune (Credit: Neil Juggins/Alamy)
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Why your fingers wrinkle in the bath

By Richard Gray
A polar bear looking at the camera over a patch of grass and seeding plants with a cave behind (Credit: Lincoln Park Zoo)
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Meet Siku, the itchy polar bear with allergies

By Katarina Zimmer
SpaceX's Starship leaves the launchpad (Credit: Getty Images)
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Is SpaceX's Starship the loudest ever rocket?

By Stephen Dowling
The peak of Mount Everest peaking through clouds (Credit: Per-Andre Hoffmann/Alamy)
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How tall can Mount Everest grow?

By Harriet Constable
A boy sitting on grass, segmented as if by time (Credit: Edouard Taufenbach and Bastien Pourtout)
Family Tree

Does time really go slower for children?

By Krupa Padhy
A round stingray in an aquarium (Credit: Getty Images)
Quick Questions

Why do some animals have 'virgin births'?

By Frankie Adkins
An inflatable poo on a lack in front of paddleboarders (Credit: Getty Images)
Quick Questions

The 100 trillion reasons your number twos float

By Richard Gray
Cat Archie sleeping (Credit: Marjan Debevere)
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Vocal fry and chirps: why do cats purr?

By Stephen Dowling
Humans began to wear fur clothing as protection against the cold – but scientists still don't know exactly when this happened (Credit: David Trood/Getty Images)
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How humans lost their fur

By Jocelyn Timperley
Plastic and plates in dishwasher (Credit: D Homer/Getty Images)
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Why plastic won't dry in a dishwasher

By Stephen Dowling
Scientists warn that the heat-trapping effect of contrail clouds could triple by 2050 if no action is taken to curb aircraft emissions (Credit: Getty Images)
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Should we be avoiding contrails?

By Jocelyn Timperley
Ham and pineapple pizza (Credit: Iamnoonmai/Getty images)
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A pizza topping that divides the world

By Stephen Dowling and Richard Gray
Most creatures start ageing and eventually die after they reach sexual maturity - but why? (Credit: Fernando Trabanco Fotografía/Getty Images)
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Why do we die?

By William Park
Cat being stroked (Credit: Getty Images)
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Why do we think cats are unfriendly?

By Stephen Dowling
Scientists have a number of theories for why zebra have evolved their distinctive black and white stripes (Credit: Getty Images)
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The truth about zebra stripes

By Yao-Hua Law