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Antarctica

MAJOR MELTDOWN  Southern Ocean storms in 2016 brought intense, warm winds that broke up Antarctica’s fragile sea ice and hastened its usual springtime melting.

Baume Brune

ECHO ART  Ancient farmers in southeastern France created rock art in shelters where sounds echoed into the surrounding landscape, researchers say. Among this set of cliff cavities at a site called Baume Brune, only the middle one (with the smallest opening) contains ancient rock art. It also has special acoustic properties that produce loud echoes.

painting of Caesar’s last moments

OUT OF BREATH  Caesar’s last moments have inspired much scientific thinking, as well as a new book.

open baobab forest in Senegal

COUNTING TREES  Researchers analyzed Google Earth imagery of dryland forest plots (one example of an open baobab forest in Senegal, shown) to reveal millions of forest hectares not previously reported.



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