When rare discoveries are made amongst wildlife, we make great strides towards learning more about these creatures, about why they were vulnerable to certain conditions and why their biology differs from the norm.

In fact, researchers are now calling the two-year-old discovery of a conjoined white-tailed fawn a groundbreaking case in terms of studies into wildlife deformity.

To discover how the animals were found, check out the video below:

The discovery of the fawns, who were stillborn and described as “freshly dead”, was made by a mushroom hunter in a Minnesota forest.

According to a study published in the science journal American Midland Naturalist, it is believed that this is the first case on record of a conjoined two-headed fawn having reached full term and having been born.

“It’s never been described before,” Lou Cornicelli, a co-author of the study and a wildlife research manager for the Minnesota Department of Natural Resources, told FOX9. “There are a few reported cases of two-headed ungulate fetuses, but nothing delivered to term. So, the uniqueness made it special.”