Polar bear genome reveals rapid adaptation to fatty diet

A comparison of the genomes of polar bears and brown bears reveals that the polar bear is a much younger species than previously believed, having diverged from brown bears less than 500,000 years ago.

Q&A: The engineer who delivers mRNA inside human cells

Messenger RNA became a household term when it was used as the backbone of the first COVID-19 vaccines, especially after the Nobel Prize was awarded to two mRNA pioneers at the University of Pennsylvania.

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