Two-time BAFTA-winning naturalist and explorer Steve Backshall soared to fame with the BBC program Deadly 60. He has also worked with the Discovery Channel and the National Geographic Channel. He has written The Falcon Chronicles, a series of children’s novels, among other books, and loves mountaineering and martial arts.
As a child, Alexander von Humboldt was sickly and a bad student. After failing to shine in economics and engineering, he grew up to revolutionize the domain of geography. He is remembered for his research on magnetic storms and his treatise on nature, Kosmos. He also spoke about climate change.
Georges Cuvier was a French zoologist and naturalist. A major figure in the early 19th century's research of natural sciences, Cuvier played an important role in establishing the fields of comparative paleontology and anatomy by comparing fossils with living animals, for which he is sometimes regarded as the founding father of paleontology.
Best known for her iconic book Born Free, which describes her experiences of raising a lion cub named Elsa, Joy Adamson was a noted Austro-Hungarian wildlife conservationist. She excelled in music and medicine in her younger days and later settled in Kenya with her third husband, conservationist George Adamson.
A pioneer of physical anthropology, Johann Friedrich Blumenbach laid down one of the first racial classification systems for humans after studying human skulls, dividing mankind into five racial groups. Born into a family of academics, he was a prodigy. He was against scientific racism, though his theory promoted the degenerative hypothesis.
Called the founder of experimental biology and father of modern parasitology, Italian physician, biologist, naturalist and poet Francesco Redi did the first major experiment to challenge spontaneous generation. His book Esperienze intorno alla generazione degl'insetti includes most of his famous experiments, while his poem book Bacco in Toscana is counted among the finest works of 17th-century Italian poetry.
21 Mary Ward
22 Emin Pasha
Eduard Schnitzer, or Emin Pasha, was born into a German Jewish family in modern-day Poland. A qualified physician, he moved to Constantinople after being disqualified in Germany. He not only served the Ottoman rulers but also surveyed and explored Africa extensively. He was eventually killed by Arab slave raiders.
28 Li Shizhen
31 Lewis Thomas
Seventeenth-century German physician and traveler Engelbert Kaempfer had been on trade missions across the world, including places such as Russia, Iran, Java, and Japan. His written experiences about his stay in Japan became a valuable source of information on the flora and fauna of the country.
36 Felix Adler
The son of Reform Judaism pioneer and rabbi Samuel Adler, Felix Adler was a German-American educator who had taught at Cornell and Columbia universities. He established the Ethical Culture movement, focusing on tying all human beings with the thread of universal morality. He also worked to abolish child labor.
38 Henri Mouhot
Spanish Jesuit missionary José de Acosta had penned the earliest available treatise on the New World, Natural and Moral History of the Indies. While on his mission in Peru, he wrote the first printed book of the country. The altitude sickness he experienced is now named Acosta's disease.