The complicated ecology of pit latrines

A new study sheds light on the complex microbial ecosystems found in pit latrines, which are used by billions of people around the world. The findings are relevant for efforts to both improve public health and reduce greenhouse ...

Scientists unlock the secrets of a sixth basic flavor

Japanese scientist Kikunae Ikeda first proposed umami as a basic taste—in addition to sweet, sour, salty and bitter—in the early 1900s. About eight decades later, the scientific community officially agreed with him.

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