Nature Hub

  By Esme Stallard Climate and Science Reporter, BBC News, Edited by - Amal Udawatta, IMAGE SOURCE, CURRENT BIOLOGY/SORENSEN ET AL. Image caption, Delta, one of the dolphins, with a sound tag to measure his clicks and whistles during the experiment Dolphins struggle to hear each other and cooperate in a world of increasing noise pollution, a new study reveals. They are one of many marine mammals that rely on whistles and echolocation to work together for hunting and reproducing. But noise pollution from human activity like shipping and construction have  risen dramatically in recent years . If they are no longer able to cooperate it could have detrimental effects, the researchers said. "If groups of animals in the wild are less efficient at foraging cooperatively, then this will negatively impact individual health, which ultimately impacts population health," said co-author Stephanie King, associate professor at the University of Bristol. Sound is one of the most important se

  By Georgina Rannard Climate and science reporter- BBC, Edited by - Amal Udawatta, IMAGE SOURCE, GETTY IMAGES Image caption, Climate change is making extreme weather including flooding more likely, scientists say One of the world's largest oil companies accurately forecast how climate change would cause global temperature to rise as long ago as the 1970s, researchers claim. ExxonMobil's private research predicted how burning fossil fuels would warm the planet but the company publicly denied the link, they suggest. The academics analysed data in the company's internal documents. ExxonMobil denied the allegations. "This issue has come up several times in recent years and, in each case, our answer is the same: those who talk about how "Exxon Knew" are wrong in their conclusions," the company told BBC News. Corporations including ExxonMobil have made billions from selling fossil fuels that release emissions that scientists, governments and the UN say cause

  Margaret Osborne Daily Correspondent - Smithsonian Magazine, Edited by -Amal Udawatta, Glass frog photographed during sleep and while active, showing the differences in red blood cells within the circulatory system.   Jesse Delia via  AMNH When a tiny glass frog dozes off to sleep, its body becomes so transparent it’s almost invisible. The amphibian’s glass-clear skin casts  no shadows . Even the red blood disappears from its veins. It’s an unusual trick—most see-through animals are aquatic, such as  icefish  or  jellyfish , which don’t produce hemoglobin or red blood cells.  “Transparency is both rare and really hard to do, because our tissues are full of things that absorb and scatter light,”  Jesse Delia , a researcher at New York’s American Museum of Natural History, tells  National Geographic ’s Jason Bittel. “Red blood cells also absorb a lot of light.”  But when the nocturnal frogs are active, blood begins to snake again through their circulatory systems, forming a visible maz

  By Georgina Rannard BBC News Climate & Science, Edited by - Amal Udawatta, IMAGE SOURCE, GETTY IMAGES A frog that turns itself mostly transparent while sleeping may hold clues for understanding blood clotting in humans. Scientists have long known about the glass frog but did not understand how it made itself see-through. Now research has discovered that it is able to pool blood in its body without being negatively affected by clots. The findings could advance medical understanding of dangerous blood clotting - a common serious condition. The glass frog - which is about the size of a marshmallow - spends its days sleeping on bright green leaves in the Tropics. In order to escape the attention of predators, the creature turns itself up to 61% transparent, disguising itself on the leaf. IMAGE SOURCE, JESSE DELIA Image caption, Glass frogs sleeping on leaves become transparent and hidden from predators "If you turn these frogs over, you could watch their heart beating by itself.