Dogs Really Are Man's Best Friend -- Here's Why

From Hachiko to Hawkeye, the stories of a dog's heartbreaking loyalty to their owners are endless.

ASPCA science advisor Dr. Stephen Zawistowski tells us that dogs are fiercely loyal simply because they evolved as pack animals.

"When they've moved into our homes and into our lives, our families have become their pack," says Zawistowski.

Watch to find out more about a dog's undying loyalty.

[danieldunn]

I think Shadow said it best in the movie Homeward Bound: A few wild dogs took it upon themselves to watch over man: to bark when he's in danger, to run and play with him when he's happy, to nuzzle him when he's lonely. That's why they call us man's best friend.

[ScoutSniper]

A very scientific explanation of the fact Dogs LOVE their owners and Pack is another word for Family to them.

[teewalmsley]

used this in my speech for english. the class looked touched thanks to this video and my presentation. now im probably going to move up a set and get a good grade for good organisation and presentation. Thank You so much!!! i could not thank you guys anymore than i am right now

[cocoathebeagle]

My dog is my best friend. She helped me heal after I lost my old girl

[XXtra]

0:10 bros like FXXk this I'm out *runs to dad*

[chloekit]

How can someone NOT like this video I don't get it

[Bungbatos]

You know why we love are dog it's because you loved them no matter what. Even tho that your injure or sick your dog will always stay with you and wait for you at home. That is why we love are dogs

[freizagen]

Dog do not love their friends for survival.
You really do not know the meaning of love.

[pauliusdidjurgis]

dogs are loyal cuse thei were adopted taken care off fed treeted nice that is a bond wich i hawe with my dog

[DravenWolfe]

I think a point is missed, "There need to survive", I don't see that as the reason at all for the bond between Humans and Dogs, considering some put their lives down for their human Pack Members.

I think your missing a key component here.

[kyastuff]

Not only mans best friend my best friend is a dog 😪

[ppanand]

IM DYING TO GET A DOG BUT MY PARENTS THINGS THAT THEY ARE VERY DANGEROUS ";C

[huekqi]

My friend that I tell my deep secrets is my dog

[OriginalPuro]

Never let your dogs jump on you like that, or lie down and let them walk on you, that's just stupid and wrong.