Highlights • In a texture identification task, rats make variable numbers of touches per trial • Whisker kinematics—shape, motion, angle—form the texture-encoding evidence • Rats make a choice when primacy-weighted touch-by-touch evidence reaches a boundary • Akin to primate decision making, rats’ choices are governed by bounded integration Summary Behaviors in which primates collect externally generated streams of sensory evidence, such as judgment of random dot motion direction, are...