Harvey Leifert

Harvey Leifert, harveywriting@verizon.net, is a freelance science writer based in Bethesda, Maryland. He previously served as public information manager for the American Geophysical Union and as a Foreign Service officer with the U.S. Information Agency.

view counter

Recent Stories

The way they live, the food they eat, and the effect on us

A true but unlikely tale

Story and Photographs by William Rowan

Increasing day length on the early Earth boosted oxygen released by photosynthetic cyanobacteria.

Genomic evidence shows that Denisovans and modern humans may have overlapped in Wallacea.