Is it cold in here? Photo by Ikayama.

• This week at the Molecular Ecologist: Making the jump from postdoc to faculty, part one, and part two.
• Privilege check. An attempt to joke about sexism in science fails badly, and prompts some good discussion about what, exactly, it means to be an ally. Also, one pretty clever new metaphor.
• And blames the students. Classy! One of the earliest champions of online college courses admits they don’t really work.
• How the early air-mail planes crossed the U.S. Guided by lighthouses.
• Broad-minded, our ancestors. Analysis of early human genomes suggest interbreeding with a previously unknown proto-human species.
• Serving in Starfleet is basically a high-prestige hobby. How economics might work in the United Federation of Planets.
• “No, he has no family. He’s perfect!” On the infamous two-body problem.
• No, seriously. Thousands of studies on lab mice might be confounded by chilled mice.
• The “red edge”. How we might detect life on another planet using only light.
• For the umpteenth time. That welt on your leg is probably not a brown recluse bite.
• Oh, Florida. Green anacondas, which can grow to be 20 feet long, seem to be settling right into the Everglades.
• No one can cite you if no one can find you. The calculus of journal prestige for authors who need to get noticed.
• Antibiotics! U.S. states with higher rates of antibiotic prescription have more obesity. The evolution of antibiotic-resistant bacteria could dramatically restrict modern medicine. Here’s what working physicians are doing to prevent that.

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