According to FOX59, a German shepherd gave birth to eight puppies recently.
Puppy number four was green. A veterinarian technician says the color is from infant animal stool that contains bile, and will probably fade eventually.

Nonetheless, the family named the green puppy Hulk.

Here’s a video about the pup:

This isn’t the first green time this has happened. It’s also not the first time a green pup has been named Hulk. Check out this video from 2018, in which a Great Dane gives birth to a spotted green pup, and seems completely colorblind, as any loving momma would be.

And, a Chocolate lab gave birth to an even greener puppy (at least based on the videos), as can be seen in the Inside Edition report below from 2017.