J. Paulette Potts was munching on a bag of M&M’s until she had trouble with the center of a blue peanut one.  She washed off the chocolate coating and didn’t find a peanut in the center, but a bone from a small mammal.

She took the bone to Professor Larry Blumer, director of environmental studies in the biology department of Morehouse College in Atlanta, for an examination.

“It’s definitely bone, and it came from some type of mammal,” Blumer told FOXNews.com. “This isn’t [a] tail vertebra — it’s something higher up, and the reason I’m certain for that is because it’s hollow. The nerve cord would run through there.”

“It doesn’t look like there’s even a remnant of flesh on this,” Blumer said. “This has either been out in the environment for a while and it got into that container, or it went through some organism’s digestive tract first. For example, you might find something like this in an owl pellet,” Blumer said, referring to the indigestible material regurgitated by the animal.

Potts contacted the company’s customer service and received a call back from a representative telling her the object was probably a peanut twig.

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