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image: Dinosaur Phylogenetic Tree Shake-Up

Dinosaur Phylogenetic Tree Shake-Up

By | March 24, 2017

An analysis of 74 dinosaur species leads a group of researchers to reorganize the extinct animals’ evolutionary history.

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image: Week in Review: March 20–24

Week in Review: March 20–24

By | March 24, 2017

What proposed budget cuts could mean for NIH; how astrocytes help control circadian behaviors in mice; how mutations confer virulence to vaccine-derived polio; why cancer risk is in part “random”

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image: Sharks May Have Evolved from Acanthodians

Sharks May Have Evolved from Acanthodians

By | March 14, 2017

Analysis of an ancient shark fossil provides the strongest evidence to date that modern sharks derive from a class of 400 million–year-old bony fish.

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image: Week in Review: March 6–10

Week in Review: March 6–10

By | March 10, 2017

Moving toward a fully synthetic yeast genome; backing up environmental data; regulating appetite with osteoblast hormones; investigating electrosensory organs in fish; contemplating federal science budgets

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“Buena vista” hypothesis suggests that changes in the sizes of eyes, rather than a shift from fins to limbs, led fish to transition to land more than 300 million years ago.  

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image: Week in Review: February 27–March 3

Week in Review: February 27–March 3

By | March 3, 2017

Remembering Eugene Garfield; protecting citizens from their own genes; a suicide switch for stem cells; storing movies on DNA; sterilizing insects with Wolbachia

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image: Understanding the Roots of Human Musicality

Understanding the Roots of Human Musicality

By | March 1, 2017

Researchers are using multiple methods to study the origins of humans’ capacity to process and produce music, and there’s no shortage of debate about the results.

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image: Week in Review: February 20–24

Week in Review: February 20–24

By | February 24, 2017

Science policy at AAAS; international marches for science; circadian clock and aging; neurons for both itching and pain; a conversation with Iraqi-American epidemiologist Wael Al-Delaimy; “waviness” in whale nerves

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image: Week in Review: February 13–17

Week in Review: February 13–17

By | February 17, 2017

CRISPR patent decision; DNA database errors; science marches around the globe; more

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image: Ancient Marine Reptile Birthed Live Young

Ancient Marine Reptile Birthed Live Young

By | February 15, 2017

Researchers have described a pregnant Dinochephalosaurus, and the fossilized remains suggest that the massive animal did not lay eggs, as previously suspected.

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