Science Daily

• The “Asian water tower” is losing 24 billion tonnes of groundwater every year

  The “Asian Water Tower” is losing roughly 24.2 billion tonnes of groundwater every year, with some of the worst declines hitting densely populated farming regions. Glacier melt may temporarily soften the crisis around the 2060s, but without changes in water use, researchers expect depletion to accelerate afterward.

• This total solar eclipse looked strangely golden — here’s why

  Spain’s total solar eclipse delivered an unexpected sight: a corona glowing gold instead of its usual pearly white. Because the Sun was setting, its light passed through more atmosphere, while smoke from nearby wildfires filtered out even more blue light. The result was a dramatic golden eclipse, punctuated by a bright pink solar prominence.

• Scientists say the human family tree may need a major rewrite

  The human family tree may be due for a major rewrite. Researchers argue that Australopithecus and Paranthropus should be folded into the genus Homo because new fossils have blurred many of the traits once used to separate them. The proposed shake-up could provide a simpler, more accurate picture of our surprisingly complicated evolutionary past.

• Pollen has a surprising problem — and honeybees have found a way around it

  Honeybees can apparently detect when their food has the wrong balance of essential nutrients and adjust how much they eat to avoid potentially harmful excesses. They also transform pollen into remarkably well-balanced “baby food” for their larvae, revealing a sophisticated nutritional strategy hidden inside the hive.

• This 23-foot crocodylian may have ruled South America’s food chain

  Miocene South America was packed with giant prey—and the predators hunting them were just as spectacular. Fossil bite marks suggest crocodylians, especially the enormous Purussaurus neivensis, were more important predators than mammals in this ancient tropical ecosystem. At around seven meters long, Purussaurus may even have helped control populations of giant herbivores.