A study co-authored by Brad Shaffer and published in the PNAS reveals new findings about turtles’ evolution and the tough prospects they face for survival by Brad · February 11, 2021 A global phylogeny of turtles reveals a burst of climate-associated diversification on continental margins. Thomson, R. C., P. Q. Spinks, and H. B. Shaffer. 2021. Proceedings of the National Academy of Sciences, USA, 118: 1-10 (No. 7 e2012215118) →