Panda markings are a sign that their food supply is not good, according to biologists from California writing in the journal Behavioral Ecology.
They say as bamboo isn't nutritious enough for them to store fat in order to hibernate, they have to have a coat which works in both winter and summer conditions as they're always searching for food, Popular Science reported.
The white parts of their bodies help them blend in with snow and the black parts help in the shade of the forest.
They've also noted that spots around their eyes serve to help pandas communicate, as they are specific to each individual. This allows the animals to identify each other.
Researchers also believe they help to make their eyes look bigger, allowing for a more menacing stare towards any danger.
Pandas also hide their faces when trying to seem less dominant, further showing that this could be the reasons for their eye markings.
However it is possible that this may not be correct, as many animals don't have full colour vision to see them so they may not look the same as they do to us.