From llamas and dogs to panda bears, we depend on animals as much as they depend on us. We share this planet and its resources. Sometimes our greed and ignorance drive species to extinction, but in every instance, individuals step in to protect those unable to speak for themselves.
To celebrate reaching 100 million followers, we’re resharing a few photos that show the bond between animals and humans that you’ve liked most. Remember to post your best Nat Geo-inspired photos using the hashtag #natgeo100contest for a chance to win a Nat Geo photo safari to Tanzania. Carousel photos by @amivitale, @robertclarkphoto, @renaeffendiphoto, @kirstenluce, @yamashitaphoto.