News Do Tides Power Black Widow's Mate? + See all authors and affiliations Science 12 Aug 1994:Vol. 265, Issue 5174, pp. 869DOI: 10.1126/science.265.5174.869 John TravisFind this author on Google Scholar Find this author on PubMed Search for this author on this site Article Info & Metrics eLetters PDF This is a PDF-only article. The first page of the PDF of this article appears below.