maybe it is like one of those wax molds used to get at the zoo in the city back in the day for ten cents, this one must of came from a Golden Coral, cause that fella is fat.
Considering you didn't offer any background info on this piece, I'd say it's likely made of a synthetic resign.
Possibly made as a votive offering, more likely just for decoration.
"Synthetic resins are chemically-synthesized materials with properties similar to natural plant resins.
They are viscous liquids capable of hardening permanently. Chemically they are very different from resinous compounds secreted by plants."
I'm going to chime in with the others that said it's a 3D printed piece. I've got a couple of 3D printed things on my desk and it's obvious to me that the same process was used to make this.
You can smooth this little guy out using acetone vapor. I'm not completely sure about the process but you can Google it.