The nuclei of all the cells are shown in blue (4). And the green line is the basement membrane of the epithelium – the supporting structure that skin grows on (5). Biology in the background Our skin ...

If you've ever pictured the builders of Stonehenge or the legendary warriors immortalized in "The Iliad" and "The Odyssey," you've likely imagined them all to be white — but that probably wasn't the ...

When a baby is born, they may have red, purple, yellow, or blue skin. Skin color variations in babies do not usually signify an underlying condition, but some skin colors in babies can be the ...