Who is the patron saint of marine biologists?

Answer 1

There is no patron saint of biologists but there is a patron of natural sciences - St. Albertus Magnus (Albert the Great).

Answer 2

Francis of Assisi is honored by the Catholic Church as the patron saint of animals and ecology. Francis was born at Assisi in Umbria in 1181 or 1182. His father was a prosperous merchant, and Francis planned to follow him in his trade, although he also had dreams of being a troubadour or a knight. In 1201 he took part in an attack on Perugia, was taken hostage, and remained a captive there for a year. As a result of his captivity and a severe illness his mind began to turn to religion, but around 1205 he enlisted in another military expedition, to Apulia. However, he had a dream in which God called him to his service, and he returned to Assisi and began to care for the sick. In 1206, he had a vision in which Christ called him to repair His Church. Francis interpreted this as a command to repair the church of San Damiano, near Assisi. He resolved to become a hermit, and devoted himself to repairing the church. His father, angry and embarrassed by Francis' behavior, imprisoned him and brought him before the bishop as disobedient. Francis abandoned all his rights and possessions, including his clothes. Two years later he felt himself called to preach, and was soon joined by companions. When they numbered eleven he gave them a short Rule and received approval from Pope Innocent III for the brotherhood, which Francis called the Friars Minor.

Answer 3

Both Saint Francis of Assisi and Kateri Tekakwitha are patron saints of ecologist and enviromentalists.