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Tag "Evolutionary Biology"

Q&A: Why did turtles come out of their shells?

Q&A: Why did turtles come out of their shells?

A study in Switzerland challenges our most basic understanding of the turtle, suggesting that it evolved head retraction as a means of predation rather than protection.

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Spiny Slugs: New fossil discovery sheds light on mollusk evolution

Spiny Slugs: New fossil discovery sheds light on mollusk evolution

Discovery of a slug-like organism called Calvipilosa, literally meaning “hairy scalp”, leads to new knowledge of what the earliest common ancestor of mollusks would have looked like.

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Deadlier Diseases

Deadlier Diseases

Yale Professor Paul Turner’s lab investigated the effect of rates of environmental change on virus mutation. The study results contribute to knowledge that will ultimately help scientists predict virus evolution and disease emergence, potentially preventing outbreaks and saving lives.

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Modern Animals with Ancient Genes: Testing the causes of evolution

Modern Animals with Ancient Genes: Testing the causes of evolution

It was once thought fruit flies can process more alcohol than their sister species because of a difference in their genome. Now, a collaboration between evolutionary and molecular biologists is challenging this hypothesis by putting ancient genes in modern fruit flies

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Cooperating to Understand Cooperation

Cooperating to Understand Cooperation

The question of whether humans are inherently selfish or selfless has long been a struggle to answer. Yale Ph.D. candidate Adam Bear and Professor David Rand strive to explain human behavior of cooperation and selfishness with a theoretical game theory model.

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Tight Jeans? Don’t Blame Your Genes

Tight Jeans? Don’t Blame Your Genes

Contrary to the first hypothesis about the increased prevalence of obesity and type two diabetes, humans did not evolve to increase fat storage. More likely, the recent rise in metabolic diseases results from epigenetic factors and the gut microbiome.

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The Red King Effect: Winning the Co-evolutionary Race

The Red King Effect: Winning the Co-evolutionary Race

A study conducted at the University of Chicago on ant-plant relationships has challenged the theory that organisms in a mutualistic relationship evolve at a slower rate than non-mutualists.

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Perplexing Fossils and Peculiar Forms: Mapping the Tully Monster onto the Tree of Life

Perplexing Fossils and Peculiar Forms: Mapping the Tully Monster onto the Tree of Life

Researchers from Yale University and other institutions, headed by Dr. Victoria McCoy, have unearthed the origins of the Tully Monster, a Carboniferous creature with highly unusual morphology.

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Lucy [Falling Through] the Sky with Diamonds: Compressive fractures suggest cause of early hominin’s death

Lucy [Falling Through] the Sky with Diamonds: Compressive fractures suggest cause of early hominin’s death

One of the oldest cold cases in history is the death of Lucy, the 3.2-million-year-old hominin. John Kappelman, who completed his undergraduate training at Yale, did some detective work on Lucy’s skeleton; an analysis of her bone fractures revealed that she may have died from falling out of a tree.

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A Real-life “Jurassic World”:  Recreating Historic Evolutionary Transitions in the Laboratory

A Real-life “Jurassic World”: Recreating Historic Evolutionary Transitions in the Laboratory

Rather than speculate on how organisms evolved certain adaptations, scientists are attempting to recreate some of these historic transitions—such as the development of fins into feet—in the lab.

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