The blood-brain barrier in a live zebrafish embryo (20x) (via The blood-brain barrier in a live zebrafish embryo | 2012 Photomicrography Competition | Nikon Small World)
“Humans and songbirds like the zebra finch (shown) share genetic changes in brain structures related to speaking and singing, new research shows.”
“A cross section of a lab-grown approximation of a human brain reveals several features, including neurons (green) and neuron-producing stem cells (red).”
Blood vessels in the brain of a live zebrafish embryo (20x) (via Nikon MicroscopyU | Small World Competition | 2012)
Heart with Anomalous Inferior Vena Cava and Azygos Continuation, graphite
Coagulation: Fibrin clot with trapped erythrocytes (red blood cells).
Can’t provide a link, it’s in my physiology book.
Figure 17.14 in Human Physiology An Integrated Approach, 5th edition, by Silverthorn.
(submission from oneluckyduck)
Eye Close Up (by Robert D Bruce)
Me sitting on a sperm whale vertebrate near Chepu on the island of Chiloé, Chile. I don’t know anything about identifying whale bones, but that’s what the locals told me.
Photo credit: a fellow tourist hiker.
(submission from wandering-nature)