The red shows rat cells in the developing heart of a mouse embryo. Salk Institute

What’s the benefit in making human-animal hybrids?

Human-animal hybrids - or 'chimeras' - might sound strange, but they offer great hope for new life saving therapies, as long as key ethical boundaries are respected.
Donald Trump is famously attached to his phone. AP Photo/Matt Rourke

How to secure a smartphone for the tweeter-in-chief

The best way to protect a presidential device is to keep it off the internet altogether. If that's not going to happen, how else can such a sensitive gadget be kept safe?

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