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A 100-pound mammoth tusk used as an educational display was stolen in March from the Campbell Creek Science Center in Anchorage.
Now the agency that runs the popular center has issued a reward of up to $500 for information leading to the recovery of the tusk.
The Bureau of Land Management's Office of Law Enforcement is offering the reward, the agency announced Tuesday.
Someone broke into the center early one morning and took the tusk. It's roughly 5 1/2 feet long, from 6 to 8 inches in diameter, and curved with a mottled dark and light brown color.
It was one of several mammoth tusks discovered near the Colville River and turned over to BLM law enforcement in the mid-1980s, officials say. The tusk was estimated to be 10,000 years old and restored before it was displayed.
The tusk was the only thing stolen during the March burglary, BLM spokeswoman Maureen Clark said Tuesday. The break-in tripped the center's security system and Anchorage police responded.
The tusk has probably been displayed at the center since it opened in 1996, Clark said.
"It's such a neat thing for the kids to see and adults as well — for the public to see something that roamed Alaska so many thousands of years ago right there in the science center," she said. "We'd sure love to have it back."
Anyone with information about the missing tusk can email blmalaska@blm.gov or call the BLM at 907-271-6622.