Scientists suggest Antarctica tourism could be making penguins sick

Sure, traveling to Antarctica sounds cool, but visitors may be leaving behind a tough time for the region's adorable inhabitants, The Atlantic reports. A paper published in the journal Polar Biology notes that penguins are highly susceptible to infectious agents such as salmonella and E. coli. And previous studies have found that tourist boots may leave behind dozens of dangerous pathogens. As tourism to Antarctica increases — more than 10,000 people now visit each year — so may the dangers ...