This year, we decided to try education in an area not related to karst – the City of Varaždin. We were received better than all expectations, it seems that cave animals are universally intriguing! 😊 Total of 173 students participated in the workshops, and several adults came to the lecture for the public. We thank all the schools for hosting us (Little Mountaineers of IV. Primary school Varaždin, Second gymnasium Varaždin, Construction, architectural, natural science and mining schools Varaždin, Primary Chatolic school Saint Uršula and First gymnasium Varaždin). The project was co-financed by the City of Varaždin.

Velebit zauzima posebno mjesto u srcima stanovnika Hrvatske, a špiljari o istraživanju njegovih jama pričaju s osmjehom na licima. S bogatstvom podzemene faune Velebita se volimo hvaliti ali do sada nismo imali objedinjeni i objavljeni popis.

Telestes karsticus is a fish that lives in Sušik stream and Sušik cave near Ogulin, Croatia. Not only the species has been recorded in the cave year-round, T. karsticus also reproduces in the cave! This represents the first record of a fish spawning in a Dinaric Karst. Here you can find more details, such as what happens when surface fish is exposed to total darkness and cavefish to daily light/dark cycle.

National Geographic 2023 photo contest Our member Tin Rožman is participating in this year's National Geographic Croatia photo contest. Have a look at the photos and if you think Tin's is the best, you can vote here. You can vote until August 31, 2023. Tin, good luck!

Green Zagorje 2023 For years, the Biology Students Association - BIUS has been an example of good professional and social practice in the education of young biologists who, working in sections of interest, gain experience and improve their formal education. Many active members of CBSS derive their interest and love for biospeleology from the Biospeleology

Subterranean fauna of the Lukina jama–Trojama cave system Velebit Mt. has a special place in the hearts of Croats, and cavers talk about explorations of its pits with a smile on their faces. We like to brag about the richness of Velebit's subterranean fauna, but we did not have a published checklist. Last week, a

#RestoreNature We need nature. Nature is the basis of our food production and we all know that. Wetlands, forests, grasslands, marine habitats… all of them play a crucial role in regulating the climate and are vital to our survival. But did you know 80% of European nature is in bad shape? Luckily, all hope is

NGOs’ Open Days 2023 Visit us at the NGOs’ Open Days on June 1 and 2, 2023! This year, we are organizing workshops for children aged 8-12, where they will explore what can we learn from cave animals DNA. After the laboratory part, the children will, in nearby park,  try out some of the methods

Research in the Jama nasuprot Torka pit, Krka National Park Jama nasuprot Torka is a pit located in the Čikola river canyon, Krka National Park. It is habitat of the Cave tube-worm (Marifugia cavatica), the only known representative of the Serpulidae family that lives in caves. The species and can be found only in underground

Pleistocene Mammals of Europe What is the ice age? Was Europe just a piece of ice back then? Who were the "rulers" of Europe before humans? You will hear the answers to these and many other questions at the lecture "Pleistocene Mammals of Europe" which will be held by Natalija Sudar, member of CBSS and