This is an ancient sea otter skull trapped inside amber. There is also a sphere that I used as a particle system for air bubbles. If you enjoy these models please give them a like, a good review, and visit my store where I have many other models for sale. If you have any questions about this asset, or about anything in my store, please contact me. If you have any issues please do the same before leaving a bad review, because it may be a simple mistake that I can try to fix. This asset (and many, many others in my store) are licensed with a variant of the CC0 License. In this License, you can do essentially everything you can in the CC0 license, like Modifying the object, using it for commercial purposes, and redistribute it (even by selling it in certain formats.) The only restreictions are:

1: You may not claim to be the original author of the item. 2: You may not take this asset and resell it in the same, or in a similar, format to those received. An example is that sometimes people will buy a model, take the downloaded files and upload them somewhere else for sale for a cheaper price, so as to undermine the capability of the author to make money. The same rule also applies to buying the esset, making an incredibly small tweak, like moving one vertex slightly or something like that, and then reselling it. 3: The item is still the property of the author in the sense that no one else may put a copyright on it specifically, but may on a larger scene which contains it with noticeable changes.