Exposure to sulfur-rich volcanic soil may increase production of pheomelanin, a pigment that gives a reddish tint to the feathers of barn owls living on remote volcanic islands Barn owls (Tyto alba) ...
When you turn on your tap, step in the shower or water your lawn, do you get a strong smell of rotten eggs? Do you get red stains in your sink and toilet or on your clothes? It's not unusual, ...
Life on a volcanic isle appears to give barn owls a blush of red-brown plumage. The high-sulfur environment on such islands influences the birds’ coloration, researchers report March 13 in the Journal ...
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