Dashavatar
1 - Matsya, the fish. King Vaivasvata Manu finds a little fish in the palm of his hands when performing the tarpana (water-offering). Manu keeps the fish, which keeps growing, eventually releasing it into the ocean, realizing it is Vishnu. Vishnu informs Manu of the coming destruction of the world, by means of fires and floods, and directs Manu to collect "all creatures of the world", Seven Sages (SaptRishis), seeds of all plants, one animal type of each species etc and keep them safe on a boat built by the gods. When the deluge (Pralaya) comes, Vishnu appears as a great fish with a horn, to which Manu ties the boat, which leads them into safety