A cage-type animal trap with two opposed animal access openings that can operate in a one-door-opening configuration or a two-door-opening configuration. The trap has an over-center set mechanism for holding one or both doors open to allow access through the corresponding trap access openings. The set mechanism includes a pivotally mounted set lever coupled to the doors of the trap by an actuating member. A bait pedal is movably mounted inside the trap with a trip rod and link assembly secured to the pedal and to the set mechanism so that when an animal enters the trap, the weight of the animal moves the pedal, causing the trip rod and link assembly to actuate the set mechanism. Upon actuation, the set lever pivots past its over-center position to allow movement of the actuating member which enables one of the doors to move from an opened position to a closed position when the trap is operating in a one-door-opening configuration, and both of the doors to move from the opened position to the closed position when the trap is operating in the two-door-opening configuration.