By laelaps on October 6, 2008. Ring-tailed lemurs (Lemur catta), photographed at the Philadelphia zoo. Tags mammals Photography Primates More like this Lemur Week: Ringtailed Lemurs Look Where You're LookingIn honor of Science Online, which begins on Thursday night, I will be writing about lemurs this week. Why lemurs? Congratulations Dr Blanchard Lemur Week: Numerical Cognition and Hidden GrapesBehold! The second installment of the Science Online Lemur Cognition series. Photo of the Day #106: Golden-Crowned Sifaka