Drosophila melanogaster visual system halfway through pupal development, showing retina (gold), photoreceptor axons (blue), and brain (green) :: Photo by Dr. W Ryan Williamson took 4th place in Nikon Small World photomicrography competition | via The Guardian
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- with temperatures dipping again, it seems summer is on the bubble, as illustrated by @samtimes bit.ly/14Vd236 #photography 6 hours ago

