News, features and analysis from the BBC Science & Environment news desk.
For many, the idea of soulmates still shapes how love is understood.
Scientists have discovered how to make people less selfish - slightly and temporarily - by stimulating two areas of the brain.
Scientists think that Svalbard bears have adapted to recent ice loss by eating more land-based prey.
Overfishing and illegal fishing are contributing to the loss of sharks, including great whites.
How 'super shoes' transformed running
Researchers say the footage, captured near the North-West Pacific coast, is the first recorded evidence of the two working together.
Thousands of earthquakes were caused by magma "pumping through" Earth's crust for three months, they say.
A new study looks at how the mouth-on-mouth smooch came into being, and concludes that Neanderthals also kissed.
A new study suggests their physical transformation began much earlier than we previously thought.
One of the longest sets of dinosaur footprints in the world has been discovered in a limestone quarry
Psychologists subjected a BBC reporter to a carefully designed thermal camera stress test.
The bald, subterranean rats are the world's longest-lived rodent.
A vaccine against a deadly disease that affects young elephants is shown to be effective in a world-first trial.
The conservationist, who died aged 91 on Wednesday, challenged how we relate to the natural world.
How long tubes of mud - drilled out of the Antarctic seafloor - could reveal how the frozen continent is changing.
A former Oceangate employee says he told US authorities about safety concerns with the sub before it imploded.
A study in Rwanda reveals the significance of a social connection between female mountain gorillas.
Researchers in Cuba and the UK are working together to reveal the biological secrets of the beautiful but endangered Polymita snail.
Orcas have been filmed using kelp as a tool to massage each other
The UK's saltmarshes lock away climate-warming greenhouse gases in layers of mud, a new report from WWF says.