PITTSBURGH — The Pittsburgh Zoo & PPG Aquarium will pay the U.S. Department of Agriculture $4,550 as part of a settlement over an investigation into the death of a 2-year-old boy who was fatally mauled when he fell into an exhibit of wild African dogs.

The zoo said that the settlement isn't an admission of liability, and it didn't release other details or make officials available.

In a separate lawsuit Jason and Elizabeth Derkosh are seeking unspecified damages in the Nov. 2012 death of their son, Maddox, who fell over a railing after his mother lifted him up to get a better look at the dogs. The zoo has moved the dogs to other zoos and now houses cheetahs in the exhibit.

PITTSBURGH — A Pittsburgh man is facing animal cruelty charges after he allegedly used a machete to decapitate his mother’s Chihuahua.Authorities say they were called to the home at about 6 p.m. Wednesday. Police say 30-year-old Matthew Ondo’s parents showed them the remains of the dog named Izzy along with a bloody machete.According to a criminal complaint Ondo at first denied killing the dog, then claimed the devil did it. Ondo’s parents told police their son is an unemployed drug addict who has emotional problems.Ondo was being held at the Allegheny County jail, unable to post $25,000 bond.