Latest Features
Diagnostic dilemma: A man's deadly infection was triggered by a probiotic supplement
A man with a complex medical history ended up with a rare bacterial infection after taking probiotics in the hospital.
Giant, near-perfect cloud ring appears in the middle of the Pacific Ocean
Earth from space A 2014 satellite image captured a rare glimpse of a massive, eerily circular ring of clouds that formed slap-bang in the middle of the Pacific Ocean.
Hohle Fels water bird: The oldest depiction of a bird in the world
This tiny bird sculpture was created 40,000 years ago by early humans in Europe who carved the key animals in their lives.
How much of your brain do you need to survive?
Case reports of people with atypical brains reveal the human brain's staggering ability to adapt to damage.
Space photo of the week: Hubble zooms in on the glittering galaxy next door
The Small Magellanic Cloud, a dwarf galaxy about 200,000 light-years from the solar system, can be seen with the naked eye from the Southern Hemisphere.
Why does nearly all life breathe oxygen?
Nitrogen comprises around 78% of Earth's atmosphere, so why do most lifeforms breathe oxygen?
Asian hermit spider: The arachnid that gets stronger after ejecting its own penis
Female Asian hermit spiders gobble up their partners after mating, so males detach their penises and sometimes offer up an amputated leg to escape.
Why do cats lick plastic bags?
Your pet's love of licking may come from their desire to nurse as a kitten.
Lake Salda: The only place on Earth similar to Jezero crater on Mars
Lake Salda, in southwestern Turkey, bears a close resemblance to Mars' Jezero crater, which is currently being sampled by NASA's Perseverance rover.
'We will fight for him': Author John Green meets Henry Reider, a young tuberculosis patient with drug-resistant disease
"At the time, I knew almost nothing about TB. To me, it was a disease of history — something that killed depressive 19th-century poets, not present-tense humans."
