Giraffes spend their evenings humming to each other
Biologists have long been curious to know whether giraffes produce any substantial sounds. Audio recordings from three giraffe houses in European zoos suggest they do
Rosettawatch: Comet 67P’s weather revealed as sun melts ice
The Rosetta probe has spotted a field of solid ice in the neck region of comet 67P/Churyumov-Gerasimenko which turns to vapour when the sun rises
Zoologger: Octopus makes own quicksand to build burrow on seabed
Southern sand octopus is first cephalopod found to build underwater hideout by burrowing through quicksand and daubing the walls with mucus
Gravitational-wave detector rebooted to sense clashing stars
The revamped Laser Interferometer Gravitational-Wave Observatory (LIGO) has taken its first science data – a step towards finding ripples in space-time
Rosettawatch: Comet 67P’s weather revealed as sun melts ice
The Rosetta probe has spotted a field of solid ice in the neck region of comet 67P/Churyumov-Gerasimenko which turns to vapour when the sun rises
US weapons facility accidentally shipped excess nuclear material
The Y-12 National Security Complex mistakenly sent too much uranium to one of its contractors, prompting concerns over site safety and management
Apes remember major events in movies, even on a single viewing
The first evidence that chimpanzees and bonobos can recall recent events comes from experiments that tested their memory of short movie clips
60 Seconds
Feline version of HIV threatens UK wildcats, antibiotic resistance is booming in India, cholera hits Iraq and more
How earthquakes can trigger copycat quakes 1000 kilometres away
Seismic waves vibrating at the right frequency can shake up distant tectonic faults, even if the waves are very weak, and set off secondary quakes
Bionic pancreas automatically controls diabetics’ blood sugar
A smartphone app can work as a bionic pancreas, allowing people with diabetes to sleep safely all night without waking to check blood sugar levels
