Is this Chuck Testa’s AMA? Nope. Chuck Testa

Want to read Reddit but don’t have the time? Our daily Reddit Digest highlights the most interesting or important discussions from around the social news site—every morning.

• Is that a dolphin fighting a bat? Nope, it’s Chuck Testa doing an AMA. (r/IAMA)
   
• Would redditors care to track the karmic history of links over time? (r/TheoryOfReddit)
   
• What is the current state of research on work habits, productivity, etc.? Oddly appropriate for Reddit. (r/AskScience)
   
• Happy Valentine’s Day! DrDiv discusses how long-lasting love falls short of the “lasting” part. (r/bestof)
   
• What are the body image issues plaguing men? (r/AskMen)
   
• What made Argentina so appealing to the Germans after World War II? (r/AskHistorians)
   
• r/explainlikeimfive delves into the validity of the U.S. invading Iraq for oil. (r/explainlikeimfive)
   
• There are certain things to look for in basketball games. (r/explainlikeimfive)

Picture of the day: As we trudge through winter, here is a hint of spring: a melting ice cave in Washington state. (r/waterporn)

Hottest subreddit: r/hiddenwow (2 days)