Dinosaur-eating Mammals (You heard me right): Jeff Hecht at New Scientisthas a good write-up of the discovery of a dog-sized 130-million year old mammal with dinosaur bones in its gut. Most mammals may have been humble little critters during the Age of the Dinosaurs, but at least a few seemed to have turned the tables.

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The more time I spend talking to biologists, the more they remind me of detectives. I have two stories in tomorrow’s New York Times that make this connection particularly clear. In the first, E.O. Wilson attempts to solve the mystery of a plague of ants that devastated some of the earliest Spanish settlements in the New World. In the second, I look at another mystery–is there life on Saturn’s moon Titan. The space probe Huygens will be falling into its hazy atmosphere on Friday to see what lurks under its cloak. I inteviewed University of Florida chemist Steven Benner who will be trying to search for signs of life in Huygens’s data. But if Titan does have life, it may not be based on DNA or even need liquid water. So how do you look for something you’ve never seen before?

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