Pall.

Peter Simon Pallas
Peter Simon Pallas
Born	22 September 1741 Berlin, Prussia
Died	8 September 1811(1811-09-08) (aged 69) Berlin, Prussia
Residence	Russia
Nationality	German
Fields	Zoology Botany
Alma mater	University of Göttingen University of Leiden
Known for	Pallasite meteorite
Influences	Simon Pallas

Peter Simon Pallas (22 September 1741 – 8 September 1811) was a German zoologist and botanist who worked in Russia (1767–1810).

Pallas was born in Berlin, the son of Professor of Surgery Simon Pallas. He studied with private tutors and took an interest in natural history, later attending the University of Halle and the University of Göttingen. In 1760, he moved to the University of Leiden and passed his doctor's degree at the age of 19.

Pallas traveled throughout the Netherlands and to London, improving his medical and surgical knowledge. He then settled at The Hague, and his new system of animal classification was praised by Georges Cuvier. Pallas wrote Miscellanea Zoologica (1766), which included descriptions of several vertebrates new to science which he had discovered in the Dutch museum collections. A planned voyage to southern Africa and the East Indies fell through when his father recalled him to Berlin. There, he began work on his Spicilegia Zoologica (1767–80).

In 1767, Pallas was invited by Catherine II of Russia to become a professor at the St Petersburg Academy of Sciences and, between 1768 and 1774, he led an expedition to central Russian provinces, Povolzhye, Urals, West Siberia, Altay, and Transbaikal, collecting natural history specimens for the academy. He explored the Caspian Sea, the Ural and Altai Mountains and the upper Amur River, reaching as far eastward as Lake Baikal. The regular reports which Pallas sent to St Petersburg were collected and published as Reise durch verschiedene Provinzen des Russischen Reichs (Journey through various provinces of the Russian Empire) (3 vols., 1771–1776). They covered a wide range of topics, including geology and mineralogy, reports on the native peoples and their religions, and descriptions of new plants and animals. In 1776, Pallas was elected a foreign member of the Royal Swedish Academy of Sciences.