Science/Nature

Sea otters ahead of dolphins in using tools

Image copyright Jessica Fujii Image caption Sea otters use rocks to crack open shellfish Sea otters may have been using stone tools for thousands or even millions of years, according to scientists. It appears otters learned how to use tools long before other marine mammals. Sea otters are often seen floating on their backs, using […]

Science/Nature

Rosetta saw cliffs collapse on comet

Image copyright ESA/Rosetta/NAVCAM Image caption A wide range of changes were observed on Comet 67P The comet visited by the Rosetta spacecraft is constantly being re-shaped, sometimes in dramatic fashion. It witnessed the collapse of entire cliffs at two locations on Comet 67P, events that were probably driven by exposure to sunlight. The European probe […]

Science/Nature

Crustal attraction

Media captionSensing the magnetism of rocks from orbit is very challenging It is the best depiction yet of the magnetism retained in Earth’s rocks, as viewed from space. The map was constructed using data from Europe’s current Swarm mission, combined with legacy information from a forerunner satellite called Champ. Variations as small as 250km across […]

Science/Nature

'Step change' needed to create more woodland

Image copyright Getty Images Image caption MPs are calling for greater protection for ancient woodland, including an inventory The amount of new woodland created in England last year amounts to under 700 hectares, an area little bigger than London’s Olympic Park. This falls far short of yearly targets needed to plant 11 million trees by […]

Science/Nature

LHC: Five new particles hold clues to sub-atomic glue

Image copyright EQUINOX GRAPHICS/SCIENCE PHOTO LIBRARY The Large Hadron Collider has discovered new sub-atomic particles that could help to explain how the centres of atoms are held together. The particles are all different forms of the so-called Omega-c baryon, whose existence was confirmed in 1994. Physicists had always believed the various types existed but had […]