Only one in a million U.S. Americans suffer from the horrible disease xeroderma pigmentosum, or "XP," but one in 40 from the Brazilian town of Araras has it. The affliction leads to tumors where sun hits skin, often the face and hands. Why is the disease so highly concentrated in Araras, and how could answering that question help unravel some confusion about Adam and Eve?

Increasing numbers of innovative researchers borrow from biology when they examine and incorporate living systems into man-made designs. We know how man-made designs originate— people design them. But what about living designs? Two recent biomimicry research programs let slip major logic errors when accounting for the origin of the creatures they copy: the seahorse and kangaroo.

It has been 28 years since Chernobyl's nuclear power plant suffered a catastrophic meltdown in Ukraine. People are still not permitted to live near it because radiation levels remain dangerous, but plants and animals long ago pioneered the Chernobyl Exclusion Zone. A new study revealed surprising hints that certain birds' internal biological tactics cope well with the harmful radiation.