Question: What is the nationality of the naturalist who founded The Endangered Wolf Center ?

Context paragraphs:
Endangered Wolf Center: The Endangered Wolf Center is a non-profit wildlife facility in Eureka, Missouri, United States, near St. Louis that is dedicated to preserving and reintroducing to the wild critically endangered species of wolves.  It is certified by the Association of Zoos and Aquariums (AZA).  The Center was founded in 1971 by renowned naturalist Marlin Perkins and his wife Carol, who saw that wolves around the world were in danger of becoming extinct.  Its mission is to preserve and protect Mexican wolves, red wolves, and other wild canid species, with purpose and passion, through carefully managed breeding, reintroduction and inspiring education programs.  Animals born at the facility have been reintroduced to North Carolina (red wolves) and Arizona and New Mexico (Mexican wolves).  The Center's research focuses on reproductive, behavioral and nutritional needs for the species housed there.  The Endangered Wolf Center is a founding member of the AZA’s Mexican Wolf and Red Wolf Species Survival Plans.  As of August 2016, the Center had six species of endangered canids: Mexican wolves, red wolves, maned wolves, African painted dogs, fennec foxes and swift foxes.  It had more than 20 Mexican gray wolves, more than any other managed breeding facility.  (Only 97 Mexican wolves were known to exist in the wild as of 2015.)  The Center serves as the cornerstone of the U.S. Fish and Wildlife Service's program to preserve Mexican wolves and reintroduce them to the wild.

Marlin Perkins: Richard Marlin Perkins (March 28, 1905 – June 14, 1986) was an American zoologist best known as a host of the television program "Mutual of Omaha's Wild Kingdom" from 1963 to 1985.

Master of the Gamblers: The Master of the Gamblers (known in Italian as Maestro dei Giocatori) ("fl" 1620 – 1640) is the notname given to a painter active in Rome and possibly also in Naples in the second and third decade of the 17th century, whose subject matter and style rank him among the Caravaggisti (followers of Michelangelo Merisi da Caravaggio).  The artist depicted genre subjects and still life elements in his works in a stark naturalist manner.  The identity and nationality of the artist are not known.  Art historians have yet to arrive at a unanimous view on the nationality, work location and the oeuvre of the artist.  He may have been Italian, but a northern European background has also been proposed.

Red wolf: The red wolf ("Canis rufus" or "Canis lupus rufus"), also known as the Florida black wolf or Mississippi Valley wolf, is a canid of unresolved taxonomic identity native to the eastern United States.  It is generally, morphologically, an intermediate between the coyote and gray wolf, and is of a reddish, tawny color.  The Red Wolf is a federally listed endangered species of the United States, and is protected by law.  It has been listed by IUCN as a critically endangered species since 1996.  It is considered the rarest species of wolf and is one of the five most endangered species of wolf in the world.

Francesco Nardelli: Francesco Romano Nardelli (born on 5 September 1953 in Rome, Italy, where he currently lives) is an Italian naturalist who has dedicated his life to the protection and conservation of endangered species.  He is also the co-founder, with John Aspinall, of the Sumatran Rhino Project, one of the most important coordinated efforts to save a critically endangered species.

Kawishiwi Field Laboratory: The Kawishiwi Field Laboratory, in Superior National Forest near Ely, Minnesota, usually known as K-Lab, hosted one of the longest running wolf population studies in the United States.  It was designed by Forest Service architects following principles laid out by national Forest Service consulting architect W. Ellis Groben.  It was built by the Civilian Conservation Corps in the 1930s.  It served as the Halfway Ranger Station of the United States Forest Service until the 1960s and has since been used by other organizations, including the United States Geological Service and the International Wolf Center.

Northern Rocky Mountain wolf: The northern Rocky Mountain wolf ("Canis lupus irremotus") is a subspecies of gray wolf native to the northern Rocky Mountains.  It is a light-colored, medium to large-sized subspecies with a narrow, flattened frontal bone.  The subspecies was initially listed as Endangered on March 9, 1978.  On August 6, 2010, the northern Rocky Mountain wolf was ordered to be returned under Endangered Species Act protections by U.S. District Judge Donald Molloy in a decision overturning a previous ruling by the U.S. Fish and Wildlife Service based on the case Defenders of Wildlife versus Salazar .  Wolves were later removed from federal protection in Idaho and Montana on May 6, 2011 under unprecedented legislation passed by the U.S. Congress removing them from the endangered species list.

California Wolf Center: California Wolf Center is a 501(c)3 nonprofit located 50 miles east of San Diego, near the town of Julian, California.  It is a conservation, education, and research center dedicated to wolf recovery in the wild.  They are a statewide organization with staff and volunteers throughout California striving to pave the way for the return of wolves in California.  Founded in 1977 to educate the public about wildlife and ecology, the Center is currently home to several packs of gray wolves, some of which play an important role in educational programs.  These wolves serve as ambassadors representing wolves in the wild.  The Center also hosts highly endangered Mexican gray wolves, now being reintroduced into the southwestern United States.

Wolf Haven International: Wolf Haven International, originally known as Wolf Haven America and Wolf Haven Country, is a wolf sanctuary and management 501(c)(3) non-profit organization headquartered in Tenino, Washington, that focuses on wolves.  Founded in 1982 by Steve and Linda Kuntz, the group provides educational programs on wolves, engages in wolf-related activism, and operates a sanctuary that houses displaced, captive-born wolves.  It also fosters and participates in captive-breeding programs for two highly endangered types of wolves, the red wolf and the Mexican wolf.  Wolf Haven is one of three facilities in the United States that provides pre-release housing for Mexican gray wolves bred for Southwest restoration programs.

International Wolf Center: The International Wolf Center (IWC) is a research and educational organization based in Ely, Minnesota, United States, that, in its own words, "advances the survival of wolf populations by teaching about wolves, their relationship to wildlands and the human role in their future."  The Wolf Center operates an interpretive center in Ely open to the public, where visitors can view captive "ambassador wolves" in natural surroundings through large windows, and can learn about wolves through a variety of exhibits and programs.  This organization lies within Superior National Forest.  It also sponsors research symposia and offsite educational programs, publishes "International Wolf" magazine, and provides information about wolves via its website.

Supporting paragraphs: Endangered Wolf Center Marlin Perkins
Answer: American