Tag: evolution

The underlying unity of life

Comparing animals of various sizes has historically been a challenge for biologists. From simple observation, an elephant could not be more different than a mouse. Yet, a universal underlying principle concurrently governs them both.  Scaling laws—derived mathematical models that compare an organism’s key life traits to its body mass—present an[Read More…]

Survival of the mutated

In his theory of evolution, which dates back to the 1800s, Darwin argues that living organisms evolve over time to promote survival and to produce the fittest offspring. This evolutionary model is based on two concepts: That all life on Earth is interconnected and that its diversity results from certain[Read More…]

Say hello to the chickensaurus

Instead of building a time machine to travel back to prehistoric times, scientists might be able to engineer dinosaurs out of chickens to live in our own backyards. In a study published this past January in the Journal of Organic Evolution, researchers were able to genetically modify chicken embryo legs[Read More…]

All for one and one for all

The origin of life on Earth remains a heavily researched topic in evolutionary biology. Among the myriad of questions yet to be answered is how simple, single-celled organisms evolved to be complex and multicellular. While the mechanism for this phenomenon has been elucidated in plants and fungi, little is known[Read More…]

Research Briefs—Oct. 28, 2014

Physicists transport marbles with optical tractor beam The tractor beam—a long-distance invisible attraction beam—is a legendary staple in science fiction. In real life, moving objects using only light seems absurd, if not impossible. However, in a paper published in Nature Photonics, a team of Australian and American physicists successfully transferred[Read More…]

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