A new permanent exhibit at the Smithsonian Museum of Natural History is already making its own history as the first to require entrance fees. One part of Butterflies and Plants: Partners in Evolution, planned to open in November, will cost visitors about $5. Much of the exhibit will be free, but an admission fee will be attached to a two-tier butterfly pavilion, similar to New York’s American Museum of Natural History butterfly habitat. We’re…

Good morning, Washington. After five straight days of frost warnings, temps will claw their way back into the 50s, though you’ll still need a parka as you head off to work. We guess it could be worse; the Nationals could be driven out of town by a foot of snow. The Cleveland Indians have been forced to cancel several games and play this week’s home games in Milwaukee by the fluffy stuff. Yikes, if…