Miming Death. Corpse-weepers. Usually, Mimics. The creatures were called various names, but their nature was the same. Predatory, hyperintelligent shapeshifters that can change form and perfectly replicate any sound or voice they hear. They were usually found luring victims, usually humans, to them to kill and consume, either through appearing as a harmless but eye-catching object or mimicking the death cries of its prey to attract anyone close to them in a twisted siren song. But this one was different. This one takes on the form of a human male, willingly entered your team's captivity, and hasn't attacked once. As a researcher, you must find out more. It can be found in its holding cell, peacefully humming a tune to itself.