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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: Image of the Day: Tubular Origins

Image of the Day: Tubular Origins

By | March 23, 2017

Murine neural tubes, with each image highlighting a different embryonic tissue type (blue). The neural tube itself (left) grows into the brain, spine, and nerves, while the mesoderm (middle) develops into other organs, and the ectoderm (right) forms skin, teeth, and hair.

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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: Image of the Day: Fly Eyes

Image of the Day: Fly Eyes

By | March 10, 2017

The robber fly (Holcocephala fusca) has a highly sensitive visual system, which can detect prey up to 100 body lengths away.

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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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Researchers report growing a mouse embryo using two types of early stem cells.

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image: Tune Into the Animal Kingdom

Tune Into the Animal Kingdom

By | March 1, 2017

A survey of sounds from birds to whales to fruit flies to fish

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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: From Cricket Choruses to <em>Drosophila</em> Calls

From Cricket Choruses to Drosophila Calls

By | March 1, 2017

A handful of insect species communicate using auditory signals—sounds that researchers have dubbed “song.”

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image: Song of Ourselves

Song of Ourselves

By | March 1, 2017

“Nature’s melodies” may be a human construct that says more about us than about the musicality of other animals.

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