Groundhog Day links, both the meteorological event and the movie: the history of weather predictions and Candalmas (Groundhog Day), how often Punxsutawney Phil has been correct (39 percent of the time since 1887), how long Bill Murray was stuck (8 years? 34 years?), and more.

Scenes from the history of snow removal. Related: Do you want to build a snowman? Physics can help.

Why did the panda’s ancestors ditch meat for bamboo?

Here’s a map of every goat in the United States, with bonus goat-related links.

Science: What Spider-Man would need to eat for breakfast in order to swing around New York. Related: the problem with actually having superpowers.

Take a tour of a 1964 underground fallout home.