ZipcodeZoo was a free, online encyclopedia intended to document all living species and infraspecies known to science.
It offered one page for each living species, supplementing text with video, sound, and images where available.
Its content is now only available on the Internet Archive The site and its sister site lookup.life included a number of specialized search functions, such as identifying a bird species from its color, shape and other traits, including where it was seen; or generating a list of plants or animals likely to be found in or near a specific location (a zipcode, state, country, latitude/longitude, etc.).
A sound trainer could play multiple bird song recordings simultaneously.
ZipcodeZoo drew on the Catalogue of Life for its basic species list, the Global Biodiversity Information Facility for its maps, Flickr for many of its photos, YouTube for videos, Xeno-canto for some of its sound recordings, the IUCN for conservation status, and other major sources.