Take the following as truth: Steep stairs to the right of the main entrance lead to the small Museo Marciano, where you can see the original four tethered bronze horses, dating from the 2nd or 3rd century a.d. and a privileged close-up of the basilica's mosaic ceilings from the museum's open galleries.
Then the following statement: "The museum also features bronze statues of other animals." is true, false, or inconclusive?