A mobile pet carrier having a base, first side, second side, third side, fourth side, and top member; and an interior compartment sized to hold an animal; the first side member defining a first side opening that provides access to the interior compartment through the first side member and having a first side opening cover; the top member defining a top opening that provides access to the interior compartment and having a top opening cover; the second side member defining a second side opening that provides access to the interior compartment and having a second side opening cover; the third side member having a side compartment that has a foldable panel movable between a closed position and an open position; and where, in the open position, a mesh portion of the third side member is exposed to provide ventilation to the interior compartment.