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Sunday Science: GIVING HEART

Jennifer Couzin-Frankel Science
A new procedure for donating hearts and other organs is saving lives. But for some it challenges the definition of death.

The Revolution That Rewrote Life's History

David Quammen The Atlantic
Perhaps the most startling discovery to come out of the study of life’s diversity and relatedness at the molecular level is the movement of genes across species lines - HGT. It turns out that HGT has been widespread and important.

What Sparked the Cambrian Explosion?

Douglas Fox Nature
An evolutionary burst 540 million years ago filled the seas with an astonishing diversity of animals. The trigger behind that revolution is finally coming into focus.
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