STEVE INSKEEP, HOST:
A lot of dog owners say they'd do anything for their pets.
LEILA FADEL, HOST:
But how many can say their dog would do anything for them? Erin Wilson found out when she walked with her dog Eva in northwest California.
ERIN WILSON: Like, I'm just walking down this slope, and the dog had run ahead of me. And I turn around, and there's this cat just growling at me. And it reaches up, and it swipes at me.
FADEL: And not just any cat. It was a mountain lion.
WILSON: I think I screamed. And I shouted for Eva, and she came running.
INSKEEP: Eva is a Belgian Malinois, a breed known for its intelligence, agility and defense skills.
WILSON: It's a German shepherd on steroids. They are driven dogs. They are crazy.
INSKEEP: So when Eva heard her owner scream, her instinct kicked in.
WILSON: She did what she does, and she hit him. They tussled for a couple seconds, but he got her pretty quickly.
FADEL: Erin jumped into action, too.
WILSON: My fight mode kicked in, and I started picking up rocks. And the first rock I grabbed crumbled on its head. So I knew, like, you know, choke it. Go for its eyes. Hurt it. It was intense.
FADEL: She ran to her truck, grabbed a crowbar and waved down a driver to help.
WILSON: I was standing right next to it, both hands around the crowbar, screaming get off my f****** dog (laughter). It was going to eat her.
INSKEEP: The dog got away, but was in rough shape with a fractured skull, a broken jaw and a damaged eye.
FADEL: But after three days at the vet, Eva's recovering at home, and her owner has only slight injuries.
WILSON: If Eva hadn't come running when she did, I definitely think there was a potential neither of us would have made it.
FADEL: As a reward, Eva will get a big steak and as many plush animals as she can tear apart.
(SOUNDBITE OF TRACE BUNDY'S "PORCH SWING")
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