UV radiation

Lake Hillier is anything but usual. The Australian lake is 10 times saltier than the ocean, and bright pink. The color comes from the microorganisms that, somehow, are able to thrive under the harshest of conditions, because of the pink. It's no accident. Nature figured out how to use chemistry to defeat the sun.
A rare genetic disorder that transforms a person's hands and feet, in particular, into tree-bark-like warts and cutaneous horns made news recently. It's truly out of the ordinary. So what's this all about? 
Concluding our two-part series on important melanoma topics, we focus on immunotherapy and the new frontier in the areas of research and treatment by engaging three experts from the Wistar Institute Melanoma Research Center.