"Dora is just about 3 years old. She protects goats and baby pigs naturally—it's all instinct on her part," Melissa McCrackin told Newsweek.

Your pets have a larger effect on your ... when they look at a picture of their baby versus just another infant. When you look at a picture of your dog versus another dog, you see the same thing.

"I have a dog named Charlie. Charlie is a golden retriever I adopted four years ago, and he’s my best buddy." Her sister, Emily, she adds, "recently had her first child—a baby boy. She and her ...