Saturday Citations: A dog regenerates a body part that may surprise you; plus microbes, neurons and climate change

Coming in hot on February 3 with a photo of a cute French bully who did an amazing trick with his jawbone. Good boy! (Click!) Happy Saturday. Here’s a roundup that includes news about additive printing of neurons, evidence that microbes like stuff, and the shifting temperature differential between day and night.

This article is brought to you by Phys.Org.