With its huge eyes, comical name and diminutive size, Mark R. Smith’s image of a baby Hawaiian bobtail squid can’t help but raise a smile. A curiously endearing creature, the cephalopod is just 1.5cm across, its mantle cavity bearing more than a passing resemblance to a rather natty shower cap. But it is also a beautiful example of symbiosis – nature’s version of “I’ll scratch your back if you scratch mine” – for on the underside of the squid is a light organ which houses bioluminescent bacteria. The squid offers the bacteria protection and food, while the bacteria emit a glow – a handy trait that the squid uses to offset its silhouette, helping it to evade predators in the depths below. Mark R. Smith’s entry combines several images of a Hawaiian bobtail squid with different focus lengths to create a final picture with greater depth of field than normal. (Photo by Mark R. Smith/Wellcome Images/Macroscopic Solutions)
Cat skin and blood supply. Whiskers, unlike normal hair, are touch receptors, each containing a sensory organ called a proprioceptor. Scientists injected blood vessels with a red dye called carmine dye (here appearing black) in order to visualise the capillaries in the tissue, a newly developed technique at the time. The picture is a composite made up of 44 individual images which were stitched together. Here, fine hairs (yellow), thicker whisker (yellow) and blood vessels (black) are all visible. (Photo by David Linstead/Wellcome Images)
Wellcome Image Awards 2017
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