Scientists have put a human brain gene into monkeys. Have they crossed the line?; Pee-oneering archeology. A new technique uses urine to study the ancient past; Why the long face? Human faces evolved to reveal emotions and communicate; Sharks cope with levels of heavy metals in their blood that would kill other animals; Is there life 'out there?' How we'll search for traces of life on nearby exoplanets; How do insects like ants time their emergence so precisely?

Seeing the first black hole - and what we'll see next; A new tiny hominin discovery gives the 'hobbit' a distant cousin; Collapsing coral reefs - can we rebuild them?; Ketamine works its magic on depression by 'stabilizing the brain in a well state'; Female dolphins may know the joy of sex thanks to a human-like clitoris; How and why do cats purr?

A catastrophe frozen in time - a new fossil site shows how the dinosaurs died; The race to the moon - what the Russians were doing behind the Iron Curtain; Tasmanian Devils are learning to live with the cancer that was pushing them to extinction; Roadside THC tests do not test for impairment. How can science help?; Permafrost landslides are eating great swathes of Arctic landscape.

Animals like dogs and cats certainly suffer from dementia.

Cataclysmic events have shaped our world and our universe

A new needle pill is out to replace insulin pens, but without the pain

Pumping breast milk depletes the milk microbiome

Connecting the dots in evolution: a unique experiment in Nebraska

E-cigarette flavouring chemicals may damage lung tissue

Birds may use their beaks to feel around for their prey.