Håkan Karlsson

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'Britain's oldest gardener' is latest Twitter convert

A 104-year-old man thought to be Britain's oldest gardener has decided to share his horticultural expertise on Twitter.<p>A green-fingered centenarian said to be Britain's oldest gardener is taking to Twitter to share his horticultural tips.<p>Ralph Hoare from Gloucestershire still enjoys his passion for …

“SITTING IS THE NEW SMOKING” — What We Can Do About Killer Couches, Sedentary Schools, and the Pandemic of Inactivity

Sitting is the new smoking. That’s a useful new buzz-phrase for what some health experts are calling the “pandemic of inactivity.”<p>In January, the</i> …

How a Rooster Knows to Crow at Dawn

The animals know when it's daybreak even in a darkened room, study says.<p><b>Back before alarm clocks jolted us awake to greet the morning with bleary-eyed confusion, roosters performed that daily duty. Now, a new study shows that roosters don't need the light of a new day to know when it's dawn—rather,</b> …

Mega-eruptions Caused Mass Extinction, Study Finds

Behind the extinction that wiped out at least half of Earth’s species.<p><b>At the end of the Triassic period, at least half of the species living on land and in the ocean went extinct, opening the way for dinosaurs to dominate Earth for the next 135 million years. Scientists have long suspected massive</b> …

THE WHOLE CHILD: A Pediatrician Recommends the Nature Prescription

<i>It’s late afternoon in the late spring, school’s been out for an hour or so. I can’t really say for sure ‘cause I’ve totally lost track of time. I’m</i> …

Trove of Neanderthal Bones Found in Greek Cave

A trove of Neanderthal fossils including bones of children and adults, discovered in a cave in Greece hints the area may have been a key crossroad …