All I want for Christmas is a lying frog and a bubble-sniffing mole. For those who want to head for the original papers, check out: 1. "Why Animals Lie: How Dishonesty and Belief Can Coexist in a Signaling System" (free full text) 2. "Underwater 'sniffing' by semi-aquatic mammals" Happy Holidays! UPDATE 12/26: Forgot to mention yesterday that I also talk about the dishonesty article on this week's edition of the Times Science podcast.