Apple's autocorrect on iPhone and iPad always aims to help when you're typing a message, but it's by no means perfect, and some of the replacements it continually spews out can be frustrating.

Are you familiar with current heart failure treatment guidelines? Test your knowledge with this quick quiz.

Sounds weird, I know.

It already exists in the natural world. Now, thanks to breakthroughs in genetic engineering, scientists have created “supersilk.” And it’s poised to upgrade far more than our clothing.