One of the funniest marine animals known from TV is Patrick star. Everybody knows Patrick star is obviously a starfish but the starfish are interesting in the way they reproduce. The starfish belong to the Echinodermata phylum. The starfish don’t have to necessarily mate to reproduce. Usually the starfish will release its gametes I order to come together with gametes of the opposite sex. To tell whether a starfish is male or female is difficult because you cannot see it physically. The female starfish holds the eggs when it is pregnant. Once the starfish wants to release the eggs for birth it makes chemical signals so the female and male starfish know that they are ready for each other and are ready in order to give new life. This is the reproductive system and how Patrick star probably came to live in the bikini bottom today.