David Shiffman
Author bio

David Shiffman is a marine conservation biologist, and a scientific and environmental consultant in Washington, DC.
Oct 21, 2020 | 450 words, about 2 minutes
Jul 27, 2020 | 650 words, about 3 minutes
Sep 4, 2019 | 800 words, about 4 minutes
Aug 26, 2019 | 750 words, about 3 minutes
Aug 15, 2019 | 450 words, about 2 minutes
Mar 30, 2017 | 600 words, about 3 minutes
Feb 28, 2017 | 600 words, about 3 minutes
Dec 28, 2016 | 450 words, about 2 minutes
Oct 20, 2016 | 350 words, a quick read
Sep 28, 2015 | 300 words, a quick read
Jul 2, 2015 | 700 words, about 3 minutes
May 19, 2015 | 700 words, about 3 minutes