They get on well with all other "Danio" species except the giant danio. A good example of endogenous plasticity occurs with zebrafish ("Danio rerio"). In larval zebrafish ("Danio rerio"), they sense predators using their lateral line system. Members of this group are mostly in the genera "Danio", "Devario" and "Rasbora". Salyut 5 on 22 June 1976, carried tortoises and a fish (a zebra danio). One particular species of these small and undemanding danionines is the zebrafish ("Danio rerio"). Homo sapiens, Rn for Rattus norvegicus, Mm for Mus musculus, or Dn for Danio rerio. Giant danio breeding can be induced in captivity. The giant danio ("Devario aequipinnatus") is a tropical fish belonging to the minnow family Cyprinidae. The celestial pearl danio seems overall quite peaceful, though some fin-nipping occurs. Operated under the management of Danio Navigazione SRL, Italy. It is also commonly known as the purple passion danio. The approximate generation time for "Danio rerio" is three months. It has a sister-group relationship with "Danio aesculapii". It was found alongside "Danio", "Microrasbora", "Erethistes", and "Oryzias" species.