Simona Gabriela Kossak () was a Polish biologist, ecologist, and professor of forest sciences. Kossak is known for her efforts to preserve the remnants of natural ecosystems in Poland. Her work dealt with, among other things, the behavioral ecology of mammals. She sometimes referred to herself as a "zoo-psychologist."
Kossak was born in Kraków, during the Second World War, when the city was occupied by German forces.
She achieved a BSc and MSc in Biology in 1976. In 1980, the Scientific Council of the Forest Research Institute awarded Kossak with a doctoral degree in Forest Sciences on the basis of her doctoral dissertation Research on the trophic situation of roe deer in the habitat of fresh mixed coniferous forest in the Biaà Âowieà ¼a Primeval Forest and, in 1991, with a postdoctoral degree in Forest Sciences on the basis of her postdoctoral dissertation Environmental and intraspecific determinants of the feeding behavior of roe deer (Capreolus capreolus L.) in the forest environment. In 1997, she received the academic title of Professor of Forest Sciences.
Kossak worked at the Mammal Research Institute of the Polish Academy of Sciences in Biaà Âowieà ¼a and at the Forest Research Institute at the Department of Natural Forests, where she was the director from January 2003 until her death in 2007. She was also one of the originators of the UOZ-1 repeller, a device that warns wild animals of passing trains. In October 2000, Kossak was awarded the Golden Cross of Merit.
Kossak was known for her uncompromising views about and actions for the protection of nature, especially in the Biaà Âowieà ¼a Forest, where she lived in the old forester's lodge "Dziedzinka" for over 30 years.
Kossak came from a well-known artistic family. She was the daughter of Jerzy Kossak, sister of Gloria Kossak, granddaughter of Wojciech Kossak, and great-granddaughter of Juliusz Kossak, and niece of Magdalena Samozwaniec and Maria Pawlikowska-Jasnorzewska. Lech Wilczek, a naturalist, photographer, and writer, was Kossak's lifelong partner.
In 2024, Kossak's life was the subject of a biographical drama film directed and written by Adrian Panek. The film stars Sandra Drzymalska as the main protagonist and premiered at the 24th New Horizons International Film Festival in July 2024.