What exactly is it? No one knows for sure, but speculation is rife over the remains of a 49-feet-long creature that washed ashore in Indonesia this week.
According to local reports, it weighed more than 35 tons and could be a giant squid, a humongous whale or something else.
The remains appear to be heavily decomposed, so residents who live near the shore have asked local authorities to examine the creature.
Videos of the carcass have been posted to social media; have a look and see if you can figure out what it is.