News tagged with biology

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How sperm get into the zona

Before it can fertilize an egg, a sperm has to bind to and bore through an outer egg layer known as the zona pellucida. Despite decades of research, some of the biological mechanisms behind this process remain ...

Jun 16, 2014
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Trapping the light fantastic

(Phys.org) —The development of a 'nanobarrel' that traps and concentrates light onto single molecules could be used as a low-cost and reliable diagnostic test.

Jun 16, 2014
5 / 5 (7) 1

Did violence shape our faces?

What contributed to the evolution of faces in the ape-like ancestors of humans? The prehistoric version of a bar fight —over women, resources and other slug-worthy disagreements, new research from the University ...

Jun 09, 2014
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Stem cells hold keys to body's plan

Case Western Reserve researchers have discovered landmarks within pluripotent stem cells that guide how they develop to serve different purposes within the body. This breakthrough offers promise that scientists ...

Jun 05, 2014
4.6 / 5 (7) 0