Is the Darwin Fish trademarked or copyrighted?

The Darwin Fish, which often features the outline of a fish with "Darwin" inscribed inside it, is not protected by copyright as it is a simple graphic design and idea. However, it can be trademarked if used as a brand identifier for goods or services. Various versions of the Darwin Fish have been trademarked by different individuals or organizations, but there isn't a single universal trademark covering all uses of the symbol. Always consult legal resources for specific trademark inquiries.