Searching in vein: a history of artificial blood, Popular Science
For centuries scientists have sought an artificial substitute for blood. Equipped with modern nanotechnology and a humbler strategy, bioengineers think they’re closer than ever.
Nature's creepy crawly helpers
Whether we like them, countless secretive, slimy, scuttling animals clean up water, decompose dead matter and protect our crops and backyards. They might make us shudder, but they shoulder the brunt of nature’s dirty work. And many are in peril.