Sophia Bush adopts a Pit Bull puppy

From One Tree Hill to three-dog house: Actress Sophia Bush, 28, has adopted a 7-week-old Pit Bull puppy named Griffin.

“The newest addition to my family,” Bush said in a Twitter post on June 1. “World, meet Griffin. My heart is bursting.”

Griffin was one of eight puppies born to Jasmine, a Pit Bull who was pregnant when she was rescued from euthanasia by Wags and Walks, a Los Angeles-area shelter; the facility won DogTime’s 2011 $10K Petties Grant.

Griffin joins Bush’s two other Pit Bulls – Penny and the one-eyed Patch.

Bush starred in the television series One Tree Hill and was featured in the 2007 movie remake of 1986’s The Hitcher.

The 2012 Petties nominations are now open.

monitoring_string = "c1299fe10ba49eb54f197dd4f735fcdc"