A 40-million-year-old shark tooth from a giant desert next to Kyiv called "Kyiv Sahara". Collecting fossils in this place sparked my interest in science when I was 10 years old and I kept visiting it almost every year until now.

My favorite place in the world - Kaniv Natural Reserve in central Ukraine. It is a lush forest with rich history and prehistory. I was there almost every summer since 2013 - for paleontological fieldwork (scroll to the bottom here) and twice for month-long TSKNU summer coursework programs.

Huge 230-million-year-old tracks or burrows (?) of some unknown organism around Hobart, Tasmania.

Zebras in a rainforest of Podocarpus conifers on Mount Kenya, Kenya. I was in Kenya in the fall 2019 semester as a part of Turkana Basin Institute Field School.

Spoils of an old coal mine in Mazonia-Braidwood, northern Illinois - home to the famous Mazon Creek deposits. Some rocks in this area contain a unique assemblage of fossilized soft-bodied organisms, including the Illinois state fossil - Tullimonstrum gregarinum.

A Camptosaurus humerus bone I found on a ranch in Wyoming, in deposits of the Jurassic Morrison formation. Camptosaurus was a medium-sized herbivorous dinosaur that coexisted with famous dinosaurs like Stegosaurus, Allosaurus or Brontosaurus.

Aurora in Madison, Wisconsin.

A fossil ammonite (extinct mollusc) in a coffin of a Polish king in Wawel castle, Krakow, Poland.

Electric eel (Electrophorus varii) I saw on a night hike in the Amazon rainforest near the Tiputini river, Ecuador.

Surface of the Cotopaxi volcano in Ecuador. I attended the International Society for the Origins of Life meeting in Ecuador in 2023 and absolutely loved the country!

Sunset over the Dnipro river in Cherkasy oblast, Ukraine.

A small roadcut exposing 453 million-year-old rocks in south-western Wisconsin. These rocks preserve abundant fossils of Ordovician invertebrates, includes over 30 species of trilobites.