Quack. Photo by blmiers2.

• The first Carnival of Evolution for 2013! Now online at Genome Engineering
• Sure, why the hell not? Did “restless genes” help humans conquer the planet? (Seriously, this is a good piece.)
• If it quacks like a quack … The science-free advice of Dr. Oz.
• Diversity of sampling for the win. How hormonal birth control might mess with mate choice—for both straight and gay women.
• I mean, really, who doesn’t know to smell their tea for bitter almonds? Thank the gods for dumb poisoners.
• Very, very, effective cows. Are leafcutter ants farmers, or cows?
• Don’t be the third reviewer. Unless you have to. Advice on how to peer-review a paper.
• Smarter isn’t always better. Selecting guppies for bigger brains demonstrates that big brains are expensive.
• Yow. Pioneering anti-GMO activist apologizes, says genetic engineering can be environmentally beneficial.

◼