CHELSEA, Mich (WLNS) – More mammoth bones have been uncovered at a site in Chelsea.

According to our media partners at WHMI, University of Michigan paleontologists have discovered 40 additional mammoth bones during a second excavation at a Chelsea farm.

Bones from a wooly-Columbian mammoth hybrid were found in 2015.

University experts determined those bones are more than 15,000 years old.

Researchers have determined that the mammoth was likely a 45-year-old male.

More from WHMI: More Mammoth Bones Discovered During Second Dig At Chelsea Farm