Welcome to the Xper2 knowledge bases website

  This site contains information on Xper2 knowledge bases curently available. You can find those that interest you, by organisms group, geographic area, living environment, etc..
  You can also find all information regarding Xper2 software, and definitions of concepts in systematics and comparative biology (descriptors, taxa ...).
by taxonomic group

by living environment

by geographical area

by language

by taxonomic rank

by fossil/extant