not all the starfish have five arms. For example, Luidia senegalensis, found in the western Atlantic Ocean, has 9 arms

03/21 is the birthday of Sonequa Martin-Green, who appeared in "Coda". She is born in 1985

56 Drops of Blood is a 2007 Hungarian musical drama about the story of some modern Romeo and Juliet, living during the Hungarian Revolution

there are 8 bits in a byte

in popular culture a cat is said to have 9 lives

"21 Hours" is a 2012 thriller novel by Dustin Stevens about an ex-con from central Ohio that has spent the seven years since being released from prison in ranch in Wyoming

"'03 Bonnie & Clyde" is a song recorded by American rapper Jay-Z featuring his then-girlfriend, American singer Beyoncé. The instrumentation is based on programmed drums, bass instruments, and a flamenco guitar

56 men signed the United States Declaration of Independence in 1776

the mandolin is an Italian musical instrument in the lute family with 8 strings in four courses