Randolph Nesse's blog about the challenge of applying evolutionary principles in medicine and elsewhere.
Tuesday, July 30, 2013
The Tenuous Tree
Pictured Rocks Lakeshore Tenuous Tree
The Crooked Crabapple Tree featured in a previous post is misshapen from coping with early adversity, but fundamentally healthy and growing fine . The Tenuous Tree below, at the Pictured Rocks National Lakeshore, looks perfectly fine, but it is hanging onto life by its fingernails...or, rather, by only two roots. They almost certainly have gotten bigger as the demands placed on them increased because soil, rock and other roots were pummeled away by the waves. But the least disruption to these lifelines will spell the end for this glorious tree.
I would love to receive photographs of other trees coping.
Nothing is more interesting than adaptations shaped by natural selection. Except, possibly, maladaptations that leave us vulnerable to disease. This blog is about the challenge of testing hypotheses about adaptation. Many posts are about Darwinian medicine, psychiatry, emotions and moral capacities. For a more formal journal about evolution and medicine, see The Evolution and Medicine Review.