Science/Nature

Why does India's air look different from space?

Image copyright COPERNICUS SENTINEL DATA 2018/BIRA-IASB/DLR Image caption Formaldehyde as measured by S5P-Tropomi: The map contains four months of observations up to April this year There is something very distinct about the air over India and the surrounding countries in South Asia. It is the presence of formaldehyde – a colourless gas that is naturally […]

Science/Nature

Cyan colour hidden ingredient in sleep

Image copyright Getty Images Image caption The researchers say cyan could be added or taken away to prevent or encourage sleep The colour cyan – between green and blue – is a hidden factor in encouraging or preventing sleep, according to biologists. University of Manchester researchers say higher levels of cyan keep people awake, while […]

Science/Nature

Polar bears captured on collar cams

High-tech tracking collars on nine female polar bears have measured the animals’ efforts to find food on the diminishing Arctic ice. In Spring of 2014, 2015, and 2016, Anthony Pagano, a researcher at the University of California Santa Cruz and his colleagues, set out to track the polar bears’ hunting and survival during this critical […]

Science/Nature

Polar bears 'running out of food'

Media playback is unsupported on your device Media captionWatch: Collar cams reveal polar bear’s-eye view High-tech collar tracking collars on nine female polar bears have measured the animals’ efforts to find food on the diminishing Arctic ice. The collars recorded video, locations and activity levels over 11 days, while metabolic tracers allowed scientists to work […]

Science/Nature

Genetic secret of English salmon

Image copyright Sam Billington, Environment Agency Image caption Chalk-stream salmon look the same as other salmon but their genes tell a different story The salmon from the chalk streams of southern England appear to be genetically distinct from others. Evidence published in the Journal of Fish Biology suggests they may be a separate sub-species of […]