Vocation : Science : Biology

Ludwik Hirszfeld (Polish pronunciation: [ˈlud.vik xirʂfeld]; 5 August 1884 – 7 March 1954) was a Polish microbiologist and serologist. He is considered a co-discoverer of the inheritance of ABO blood types.

Dr. Juan Arturo Rivero Quintero (March 5, 1923 in Santurce, Puerto Rico – March 3, 2014) was a Puerto Rican biologist who founded the Dr. Juan A. Rivero Zoo at the University of Puerto Rico's Mayagüez Campus.

Carlos Eugenio Chardón Palacios (28 September 1897 – 7 March 1965) was the first Puerto Rican mycologist, a high-ranking official in government on agriculture during the 1920s, the first Puerto Rican appointed as Chancellor of the University of Puerto Rico (1931–1935), and the head of the Puerto Rico Reconstruction Administration in the mid-to late 1930s during the Great Depression. He was also known as "the Father of Mycology in Puerto Rico". He discovered that the aphid "Aphis maidis" was the vector of the sugar cane Mosaic virus. Mosaic viruses are plant viruses.
In the 1920s, he was appointed as Commissioner of Agriculture and Labor. In that position, he traveled in Central and South America, aiding agricultural programs in Colombia, Venezuela, Bolivia and Dominican Republic. After serving as a university administrator and head of a major agency, he returned to his academic work in the fields of land use and agriculture in 1940 and later. He published several books on his studies in Puerto Rico and Latin America.

Jaime Ferran y Clua (Corbera d'Ebre, 1851 – Barcelona 1929) was a Spanish-French bacteriologist and sanitarian , contemporary of Robert Koch, and said by his fellows to have made some of the discoveries attributed to Koch. As early as 1885, he wrote on immunization against cholera. In 1893, his work on this subject was translated into French with the title L'Inoculation préventive contre le Cholera.Tuberculosis is another disease in which Ferran was always deeply interested. Some of his ideas on the transmission and virulence of tuberculosis are revolutionary.
He died in 1929 and was buried in Montjuïc Cemetery, Barcelona.

Thorburn Brailsford Robertson (4 March 1884 – 18 January 1930), generally known as Brailsford Robertson, was an Australian physiologist and biochemist.

James Peter Hill FRS (21 February 1873 – 24 May 1954) was a Scottish embryologist.

Jean Dorst (7 August 1924 – 8 August 2001) was a French ornithologist.
Dorst was born at Mulhouse and studied biology and paleontology at the Faculty of Biological Sciences of the University of Paris. In 1947 he joined the staff of the Muséum national d'Histoire naturelle. He succeeded Jacques Berlioz as chairman of Mammifères et Oiseaux in 1964, and was elected as director of the museum in 1975, resigning in 1985 to protest against government reforms of the museum.
Dorst was a member of the Académie des Sciences, one of the founders and second president of the Charles Darwin Foundation for the Galapagos, president of the 16th International Ornithological Congress (IOC), and vice president of the Commission of Protection of Threatened Species of the International Union for Conservation of Nature (IUCN).
Dorst was one of the writers of the documentary Le Peuple Migrateur (Winged Migration), and the film is dedicated to him. A companion volume of photographs and essays was published in 2003.