
author
1875–1964
A pioneering spider expert who turned close observation into vivid science writing, he helped shape modern arachnology at Yale. His work ranged from living species to ancient fossil spiders, bringing both precision and curiosity to a field few readers ever see up close.

by Alexander Petrunkevitch, Frank Alfred Golder, Samuel N. (Samuel Northrup) Harper, Robert Joseph Kerner
Born in the Russian Empire in 1875, Alexander Petrunkevitch became one of the leading arachnologists of his time. After studying in Moscow and at the University of Freiburg, he eventually settled at Yale, where he built a long academic career and became a full professor.
He is especially remembered for describing more than 130 spider species and for major work on both living and fossil arachnids, including specimens preserved in amber and from Coal Age deposits. Alongside his scientific research, he also wrote essays that helped make the world of spiders feel vivid and approachable to general readers.
Petrunkevitch died in New Haven, Connecticut, in 1964. His lasting reputation comes from the way he combined careful taxonomy, broad evolutionary interest, and a genuine fascination with animals that many people overlook.