I'm sorry you lost your FBT, I recently lost one of mine too and have no idea why . But they really are pretty hardy animals! I can't believe yours lived that long....it must've had a water source in your basement that it was living in or something, and maybe some insects down there too! So crazy! After thinking about it all day yesterday, I almost think that mine may have hopped into my dogs bed at night while she was sleeping for warmth or something still not really sure what actually happened though, and I will never know.