Articles by Graycen Wheeler

Graycen Wheeler (@GraycenWheeler) is a freelance science journalist based in Santa Cruz, California.

Amazon losing far more carbon from forest degradation than deforestation: Study

by Graycen Wheeler 9 February 2022

Forest degradation due to environmental causes (such as drought) and human causes (such as fragmentation) released three times as much carbon as deforestation in the Brazilian Amazon between 2010 and 2019, say researchers.

Large tiger sharks overwinter in the Bahamas and migrate thousands of kilometers into open ocean in the summer, but they remain in the Atlantic. Photo credit: © Christopher Vaughan-Jones

Geneticists have identified new groups of tiger sharks to protect

by Graycen Wheeler 30 November 2021

Tiger sharks sometimes swim thousands of kilometers—far enough to move among oceans. Their flexible diets and adaptable behaviors set them up to be successful jet-setters, zipping around the world and…