Is it true all scientific studies are shared through publications?

Not all scientific studies are shared through formal publications. While many researchers aim to publish their findings in peer-reviewed journals, some studies may be shared through conference presentations, preprints, or not published at all due to various reasons such as negative results or lack of funding. Additionally, some research may remain proprietary or unpublished for commercial or ethical reasons. Thus, while publication is a common route, it is not universal.