Police and paramedics responded to a home in the 2500 block of Larkwood on the night of Dec. 26.
The mother of a 2-year-old boy had run to a neighbor with her 2-year-old son, Fullerton Police Sgt. Andrew Goodrich said. She asked the neighbor to call paramedics.
Fullerton Fire took the toddler to an area trauma center, where he was treated for a 7-inch laceration on his head.
The mother was house-sitting for a friend, and does not live at the residence where the attack happened.
She told authorities she stepped out of the room for a moment, then heard growling, following by her son screaming.
When she ran back into the room, she said, she saw the dog standing over her child, who was bleeding from the head.
Animal control took custody of the dog.
Officers searching the house found marijuana growing and being processed inside.
Police contacted the homeowner, but no arrests have been made.
Detectives are investigating both the marijuana cultivation and possible child endangerment.
(KTLA, OC Register - Dec 27, 2011)
