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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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“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: Suicide Switch for Transplanted Stem Cells

Suicide Switch for Transplanted Stem Cells

By | March 2, 2017

Researchers use an inducible gene to limit tumor growth from human iPSCs transplanted into mice.

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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: Infant Brain Scans May Predict Autism Diagnosis

Infant Brain Scans May Predict Autism Diagnosis

By | February 17, 2017

A computer algorithm can identify the brains of autism patients with moderate accuracy based on scans taken at six months and one year of age.

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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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image: Image of the Day: Mammary Trees

Image of the Day: Mammary Trees

By | February 14, 2017

Long-lived stem cells are activated by ovarian hormones to help grow mammary glands during pregnancy.

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Speciation and development of new traits may not always go hand-in-hand.

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image: Science Teaching Standards up for Revision in Texas

Science Teaching Standards up for Revision in Texas

By | February 9, 2017

Despite a committee of educators recommending the removal of language challenging evolution in science curricula, state education board members vote to reintroduce controversial concepts. 

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