The Society for Molecular Biology and Evolution is an international organization whose goals are to provide facilities for association and communication among molecular evolutionists and to further the goals of molecular evolution, as well as its practitioners and teachers.

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Birds take tRNA efficiency to new heights

Birds have been shaped by evolution in many ways that have made them distinct from their vertebrate cousins. Over millions of years of evolution, our feathered friends have taken to the skies, accompanied by unique changes ...

The epigenetics of life at 12,000 feet

Humans inhabit an incredible range of environments across the globe, from arid deserts to frozen tundra, tropical rainforests, and some of the highest peaks on Earth. Indigenous populations that have lived in these extreme ...

A search for new species on the high seas

Out of the vast number of life forms on the planet, it is estimated that fewer than 25% have been characterized, perhaps even fewer than 0.01%. Among this list, microscopic organisms are especially poorly represented: While ...

The colorful history of plastids

A billion years ago, a single-celled eukaryote engulfed a cyanobacterium—an organism capable of converting the sun's energy into food in the form of carbohydrates. In one of the single most pivotal events in the history ...

When determining sex, exceptions are the rule

For nearly a century, biologists have modeled the evolution of sex chromosomes—the genetic instructions that primarily determine whether an individual will develop into a male or female (or a certain mating type)—resulting ...

Sex as stress management in microbes

Why is sex so popular? The question of why so many organisms reproduce sexually has mystified evolutionary biologists since before Darwin, who wrote, "The whole subject is as yet hidden in darkness." In a recent article in ...

Re-cracking the genetic code

Crack open a biology textbook and you will find the table summarizing the standard genetic code. This refers to the set of rules by which the cell "decodes" the information contained in DNA and "translates" it into the amino ...

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