Biomimicry Taxonomy

"The Biomimicry Taxonomy is a classification system developed by the Biomimicry Institute to organize biological content on the website AskNature. The taxonomy categorizes the different ways that organisms and natural systems meet functional challenges into groups of related functions.
Use the taxonomy to help you navigate AskNature or, when beginning a design challenge, as a tool to help you 'think functionally' and identify questions you can 'ask' nature."

Water Quality Planning Bureau Library Thesaurus

"The Water Quality Library Database is indexed using controlled vocabulary from the WQPB Library Thesaurus. This thesaurus was developed to create a standardized vocabulary for water concepts that may be phrased in a variety of ways in the literature, it should be used as a guide to searching keywords in the library. The terms are arranged according to lead terms, together with both broader and narrower hierarchical relationship terms and related terms. USE references are noted to satisfy desirable standardization requirements."