COMPADRE & COMADRE (for short, and to confuse a little bit the non-Spanish native speaker!) constitute the two more comprehensive “Noah’s arks” of demographic information in the Plant and Animal kingdoms worldwide, respectively. The most recent version of COMPADRE (5.0.0) contains 9,121 matrix population models detailing the demographic schedules of 760 plant (and red and brown algae) species, from annual species to redwoods and anything in between, all carefully collected from 941 archived studies around the globe. Likewise, COMADRE (version 3.0.0) contains 2,227 matrix population models for 446 animal species, from corals to humans, digitised from 558 published resources.