How naturalists saved lives observing species
Naturalists
and centuries of species discoveries have helped humanity ward off
pestilence and disease. Their success in finding cures provided the
breather we enjoy now from plagues of yesteryear. Roughly half our
medicines came directly from the natural world, or were manufactured
synthetically due to naturalists performing their job.
Naturalists no longer get scoffed at for collecting everything from
miniscule insects to gargantuan elephant jaws. In the 18th Century Sir
Hans Sloane the physician and naturalist was known for collecting
objects of interest - eventually the British Museum, the British Library
and the Natural History Museum, London were born.
Naturalists believed that that all species must be observed and
allowed to co-exist which greatly enhanced the study of the origins and
causes of disease and finding effective cures.
Discoveries
*Help humanity
* Ward off disease
* Help enhance studies
* Help find cures
*Enhances natural history
*Makes humanity part of
nature |
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Sir Hans
Sloane |
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Edward
Jenner |
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John Hunter |
The list includes aspirin (originally from the willow tree), almost
all our antibiotics (from fungi that evolved in nature, not a Petri
dish) and many of our most efficient cancer treatments.
Contribution to medicine
Drugs developed from the Madagascar rosy periwinkle, a flowering
plant helped cancer patients. Those with lung, breast, uterine and other
cancers benefited from botanist named Arthur S Barclay’s research in
1962 on samples of the Pacific yew tree, leading to the development of
the anticancer drug Taxol.
Naturalists helped discover large swaths of the world’s basic
medicinal remedies. John Hunter, a British physician, considered the
father of modern surgery emphasized the importance of observing the
natural world.
Hunter’s passion for animals had been unquenchable - he made detailed
flesh-and-blood comparisons of animals and humans, discovering, among
other things, how bones grow and what course the olfactory nerves
travel.
Another scientist Edward Jenner referred to as the ‘Father of
Immunology’ discovered vaccines against countless deadly diseases, from
yellow fever to polio. He got credited for saving more lives than anyone
in the history of medicine.
Workings of human body
Beyond giving us powerful new drugs, discoveries from the natural
world also frequently opened our eyes to the unsuspected workings of our
own bodies. The observation that snake bite sent blood pressure
plummeting down in minutes eventually spawned a new mechanism for
controlling human blood pressure. Another cure, rapamycin, also known as
Sirolimus, developed from a soil fungus on Easter Island (Southern
Pacific region), provided a pathway previously unknown to medicine
regarding human immune system. It’s now widely used for organ
transplants and as a coating on heart stents.
We are still discovering other species that might enhance our
knowledge about fighting illnesses. Only a tiny percentage of the
world’s plants have been screened and even those have only been screened
against a small fraction of the diseases for which they could be
effective.
Species go instinct
It is important to know that pharmacologically-active compounds
developed over millions of years and found effective in the world’s
unforgiving laboratory-nature-routinely vanish, as the species in which
they evolved go extinct. Epidemics seemed completely discounted by the
world - that it’s hard to imagine we ever lived otherwise. But malaria
once routinely killed millions a century ago. Yellow fever epidemics in
the US in 1878, one in eight residents of New Orleans died as desolation
came in weeks.
We are aware how naturalists had identified the causes of yellow
fever, typhus, plague, dysentery and above all, malaria. Scientists were
now in a position to name, describe and classify organisms including
plants, animals and microorganisms of the world. Taxonomy as well as
behavioural methods to study species from microbial organisms to
mosquitoes had become second nature to us. As the great Scottish
naturalist Patrick Manson, the father of tropical medicine stated, the
study of the origins and causes of disease is but a branch of natural
history.
The brief respite we have had from epidemics should not blind us to
the gradual destruction of forests, wetland and glaciers. It would be
delusionary to think that humanity can survive separated from nature.
Conservation must become a key ingredient of our lives.
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