The dogs are able to turn over the soil of a whole garden to find the bone they have buried, they don't know where exactly.
I like dogs and I took the liberty of giving the man in the photo a dog's head, no offense.
This is my third entry for this week in the Meme Challenge #329 hosted by 
You can find the rules, the original picture and the last winners of the MemeChallenge in the post below, and maybe you could participate too ? Please join and try to make #memearmy smile for nice rewards!
Dogs are endowed with great perseverance and when they are launched into an action it is difficult to stop them, especially if it involves food and especially a bone.
Our man in the photo seems to be persistent in digging his trench and I pay tribute to him.
Image source:
https://www.freepng.fr/png-rhxw8n/
Image editor:
Photofiltre
https://www.photofiltre-studio.com
I invite 
Special thanks for the original Photo to Elijah Pilchard:
https://www.pexels.com/fr-fr/photo/nature-brun-portrait-enfoncer-12792487/