ACE VENTURA: WHEN NATURE CALLS (1995)
Ace Ventura, emerging from self-imposed exile in a remote Himalayan hideaway, travels to Africa with explorer Fulton Greenwall to find a sacred bat which is told will avert a war between with Wachootoo and Wachati tribes. Of course, when Ace gets involved, all hell breaks loose...
From Jonathan Broxton on IMDb
I like WHEN NATURE CALLS for what it is, but it certainly feels a little more off-the-wall than PET DETECTIVE. But you can't deny that the "rhino birth" scene isn't hilarious.