About Jaroslav Mareš
Lived 1937 – 2021 (aged 83). Jaroslav Mareš was a Czech writer, biologist, explorer, entomologist, traveler and opinion journalist.
Ing. Jaroslav Mareš (28 December 1937 in Brno, Czechoslovakia – 5 May 2021, Prague) was a Czech cryptozoologist, biologist, traveller and writer.
He graduated from The University of Economics in Prague, getting a degree of Ing (he studied international business). He worked for Czech Airlines in Iran and later in Canada. He visited 85 countries and organised several expeditions for research of cryptids, such as Kongamato (for this he was offered the membership of the International Society for Cryptozoology which he accepted), Nandi bear, Megalania prisca, Bigfoot, Yeti, Nessie, Ogopogo, Champ, megalodon, Lusca, Ambazombi and others. In 1978 he organised an expedition to the tepui which probably inspired Sir Arthur Conan Doyle for writing The Lost World (a book based on stories told to Doyle by Colonel Percy Fawcett).
He also studied dinosaurs (he visited most of the famous fossil sites, such as Nemegt in Mongolia, Tendaguru in Tanzania, Red Deer in Alberta, and other localities in Utah, Colorado, Montana and Patagonia) and corresponded with the world-leading palaeontologists. Another field of his interest was shamanism.
In 1976 he discovered and later scientifically described the world's strongest carnivorous beetle, Manticora imperator, of the tiger beetle group. He became a specialist in this group of beetles and later described three more species.
He published twenty two books and numerous magazine articles. He died in Prague aged 83.
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Important facts
People in Jaroslav Mareš's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped Jaroslav Mareš's
Frequently asked questions
Who was Jaroslav Mareš?
Czech biologist, traveller and writer (1937–2021)
When was Jaroslav Mareš born?
Jaroslav Mareš was born on 28 December 1937 in Brno.
When did Jaroslav Mareš die?
Jaroslav Mareš died on 5 May 2021 in Prague.
What was Jaroslav Mareš's occupation?
Jaroslav Mareš was a writer, biologist, explorer, entomologist, traveler and opinion journalist.
What nationality was Jaroslav Mareš?
Jaroslav Mareš was Czech.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Jaroslav Mareš. https://biography.guide/jaroslav-mares/
MLA: "Jaroslav Mareš." Biography.guide, https://biography.guide/jaroslav-mares/.
Chicago: "Jaroslav Mareš." Biography.guide. https://biography.guide/jaroslav-mares/.
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