![Amazing footage of a chicken embryo's beating heart made visible through the injection of dark ink into the yolk sac artery. [Editor's note: part of the amazing 2011 Nikon Small World in Motion featured in [post:46029]#46029[post]].](http://static.notcot.org/images/uploads/embryo.jpg)
Amazing footage of a chicken embryo's beating heart made visible through the injection of dark ink into the yolk sac artery. [Editor's note: part of the amazing 2011 Nikon Small World in Motion featured in [post:46029]#46029[post]].
March 8th, 2012
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