Tag: Africa
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C. Louis Leipoldt: The polymath physician and literary giant
Stephen FinnSouth Africa Looking out across a landscape of dramatic mountains and purple and orange sunsets is a small cave. Listen carefully in this desolate place in a western corner of South Africa, and you will hear in the distance the sound of a banjo being plucked. Interred in this cave at his request are…
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Mitochondrial DNA: a maternal gift
Marshall Lichtman Rochester, New York, United States Human haplogroup tree rooted at Mitochondrial Eve. By Wapondaponda. 2009. Via Wikimedia. CC BY-SA 3.0 DNA is arrayed on twenty-three pairs of chromosomes in human cell nuclei. It is coiled tightly around proteins called histones that together with DNA form a chromosome. The largest chromosome carries several…
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Mary Josephine Hannan: portrait of a pioneer
Katie King Atlanta, Georgia, United States Mary Hannan. Photograph by Cowell, Simla. Via the Wellcome Collection. Public Domain. Mary Josephine Hannan was an Irish medical pioneer, an outspoken woman with a strong sense of morality, a fervid supporter of women’s rights, and a champion of children and public health. She spent her life fighting…
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The deer trail
Henri Colt Laguna Beach, California, United States Photo by Kevin Mueller on Unsplash “Ezra, get up! It’s a beautiful morning, and you’re sixteen today!” I playfully shook my son’s shoulder. “It’s six o’clock, Dad, what are you doing?” He buried his head under his pillow and slid under the covers. “We’re going hiking, remember?”…
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Origin of yellow fever
Enrique Chaves-Carballo Kansas City, Kansas, United States The origin of yellow fever has been a controversial subject since the disease appeared in the New World. William C. Gorgas, who was responsible for the sanitation of Cuba and Panama, believed that yellow fever originated in Panama.1 Henry R. Carter, from the U.S. Marine Hospital Service and director…
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All too human: The mountain gorillas of Uganda
James L. FranklinChicago, Illinois, United States The Ugandan mountain gorilla is a member of the Hominidae family, also known as the great Apes. The extant species include: the orangutan, the eastern and western gorilla, the chimpanzee, the bonobo, and ourselves—Homo sapiens. The mountain gorilla is one of two subspecies of the eastern gorilla. The one…
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The African Savannah
Steve Ablon Chestnut Hill, Massachusetts Photo by Steve Ablon Forty years ago, my father wore his safari hat, squinted through binoculars, told us those giraffes, the dark ones, are older, and soon will not be able to outrun lions or will break a leg, be eaten. That is the cycle of life he…