Experimental constraints on the Galileon model from WMAP7+BAO+H0 data. To represent the four-dimensional likelihood , six two-dimensional contours for each pair of the Galileon model parameters are presented after marginalizing over the left over Galileon parameters. The filled dark, medium, and light-green contours enclose 68.3, 95.4, and 99.7% of the probability, respectively. Dark dotted regions correspond to scenarios rejected by theoretical constraints.