Karol Sabath

He was employed by the Instytut Paleobiologii of the Polska Akademia Nauk - Institute of Paleobiology, Polish Academy of Sciences, Warsaw.

He also worked for National Geographic magazine, the Museum of the Polish Geological Institute, the European edition of Scientific American, and various other publishing houses in Poland.

He was a scientific advisor for many popular-science events, including reconstructions of paleobiological environment and specimens (Baltow Jurassic Park).

In 2003, Sabath and Jørn Hurum demonstrated that Tarbosaurus is a close relative of Alioramus, and not a species of Tyrannosaurus.

This was based on supporting evidence for the hypothesis that tyrannosaurids originated in Asia, and then migrated to North America.