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The specimen also preserves the first keratinous sheath of a therizinosaur, an element that covers the claw much like human fingernails, aiding defence, movement, or prey catching.

The ornithology department houses floor-to-ceiling archives of carefully preserved bird specimens.

With “Theft,” he continues to turn over the history of his home country, Tanzania, with the awe of a geologist examining a rare, flawed and inimitable specimen.

"I'm very sad for the loss of these very special specimens," he said.

Gobies live only for about a year, so those on the rescue mission were told collecting the largest specimens wasn’t ideal — they may not have much life left.