A dog’s love is special. However, since dogs aren’t humans, they have their own way of expressing their affection. Some of them give hugs and kisses while others become protective and clingy. There are dogs who invade personal space as a way to express love.

Dogs may differ in the way they show their affection, but one thing is certain. The love they have for their humans is unconditional and forever.

Here are 75 heart-melting photos that prove dogs’ unconditional love for humans.