Gene-Editing Humans, Asymmetry, Ancient Whale Ancestor. Nov 30, 2018, Part 2

The first CRISPR-edited babies are (probably) here. The news raises social, ethical, and regulatory questions—for both scientists and society.

Then, why are human bodies asymmetrical? A single protein could help explain why.

And finally, ever wondered how whales got their mouth bristles? It's possible that they went through a phase where they sucked up their food like vacuums before they evolved baleen.

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