In Roger, use animal* (with the *) to search on multiple terms, e.g. singular or plural: animal, animals, etc.
Warning: use any broad truncated term (i.e. using the "*" wildcard) WITH your specific subject terms, because used alone in a search they will retrieve very general and large results.
For example: animal* treat*; veterinar* career*; endanger* species, etc.
If you don't have an author or title, start with the keyword search.
Searching animal welfare is the same as animal and welfare, and will retrieve only records with both terms. Searching animal or veterinary will retrieve results with at least one term, giving you a larger set of results.
If you see >> Go to electronic version in the record, most of these are links to get to an e-book.
Use HathiTrust to browse & search over 111,7300 items digitized from the former Scripps Library collection. This digitized collection in HathiTrust includes books, technical reports, & series in oceanography, earth & marine sciences, and atmospheric sciences fields, plus Scripps Institution of Oceanography publications. Use your UCSD login to gain access to more full text content.