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What does the history of human hybridization share with some of our closest relatives?

  About the author: Marcella is an NSF postdoctoral fellow currently working in David Toews’ lab on the genetics of speciation and hybridization. Her current projects involve evolutionary genomics of adaptation, species divergence, and gut microbiome structure in wood warblers. Marcella received her PhD and MS in Ecology and Evolutionary Biology at the University of Michigan. […]


Do marine species of a fin flock together?

In every biology textbook, Darwin’s finches remain a staple introduction to the concept of speciation and adaptive radiations.  Considered part of the tanager family, these fifteen species native to the Galapagos Islands evolved from a single ancestor 2 million years ago (Lamichhaney et al. 2015).  Since then, many examples of species flocks, or groups of […]


Where do wood frogs go when there’s no wood?

Wood frog (Lithobates sylvaticus) common to North America. Photo courtesy of Michael Zahniser, Wikimedia Commons.   Humans have fundamentally altered their surroundings for a looooong time. With increasing urbanization worldwide, we need to better understand the consequences of suburbia in order to manage particularly vulnerable species. Though wood frogs are found throughout North America, loss […]


Happy Darwin Day!

  Today is Darwin Day! Charles Darwin was born on February 12, 1809. In 1859, he published On the Origin of Species, forever changing how we view the world. Forty-four years later, Darwin’s theory of evolution inspired the formation of the American Genetic Association. Then called the American Breeders Association, members first met to discuss […]


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