Hulk

Hulk was a Labrador Retriever that was born with a green hue!

Hulk was born in a New Orleans shelter in 2010. When he was born, the public was shocked. His siblings were the normal color of labs, but he, was green! Nobody knew why he was green, but after a couple of Google searches, they found out that he had ingested a toxin in his mother's placenta that gave him that special tint. His owners aptly named him after the Marvel hero, Hulk.

This rare condition is not lethal, and Hulk on day 10 lost his green hue, and is presently normal-colored. This strange discoloration has been reported by other individuals, such as this Great Dane, as seen below.