I'm Michel Martin, and this is TELL ME MORE, from NPR News. Coming up, are you invited to any parties for Kwanzaa, which is going on now? If the answer is yes, you're not alone. If the answer is no, you're not alone, either. We'll ask just how widely observed is this inspired-by-Africa, made-in-America celebration.
With a gauge at the tricky section of the Mississippi River near Thebes, Ill., already registering a remarkably low water level — and projections that it will fall further in coming days and weeks — trade groups are warning that barge traffic through that part of the river may have to halt completely as soon as next week.
Originally published on Fri December 28, 2012 12:41 pm
Got milk? Ancient European farmers who made cheese thousands of years ago certainly had it. But at that time, they lacked a genetic mutation that would have allowed them to digest raw milk's dominant sugar, lactose, after childhood.
Today, however, 35 percent of the global population — mostly people with European ancestry — can digest lactose in adulthood without a hitch.