The crossword solution for the term 'LENGTHY TIES' is OBIS, which stands for 'Organization of Biological Information Systems'. OBIS is an international organization that works to promote the sharing and use of biological information. It was established in 1995 and has since grown to include over 100 members from around the world. OBIS works to facilitate the exchange of data and information related to biodiversity, as well as to promote research and education in the field.