Pisces is the twelfth astrological sign in the Zodiac. It is also considered a water sign and one of the four mutable signs. (Mutable signs have a longing for movement and are extremely restless. Pisces is the most watery sign. It is constantly trying to adapt itself to its ever-changing feelings and to the moods and whims of others.) It is considered to be a feminine and introverted sign.

Pisces has been traditionally ruled by the planet Jupiter, but since its discovery, Neptune has been considered a modern ruler of this sign. Being the twelfth sign, Pisces is associated with the astrological twelfth house. Individuals born when the Sun was in this sign are considered Pisceans. Under the tropical zodiac, the Sun is in Pisces roughly from February 19 to March 20, ending on the moment of vernal equinox by definition. Under the sidereal zodiac, it is currently there roughly from March 15 to April 13.

According to one Greek myth, Pisces represents the fish into which Aphrodite and her son Eros transformed in order to escape the fire god Typhon; they are tied together with a cord on their tails, to make sure they do not lose one another. Alternatively, the twin fish were placed in the heavens in honor of their heroic deed of saving Aphrodite and Eros from Typhon on the river Euphrates. There is also much variety in body structure, life patterns and habitats of species that belong to the same class.

Generally, the Pisces sign are considered to be compatible with other water signs such as, Scorpio, Cancer and Pisces. These signs share a watery demeanor and are believed to relate with each other on that merit.

from Wikipedia

As I said on the first page, I was born under the sign of the two fish. So, I did this quiz on mydailymoment.com and this is what I got:

You're a true Pisces! Congrats! You're a Pisces to the letter. You possess all of the characteristics of a Pisces. In general, Pisces are gentle, patient and compassionate. They're often big-hearted to a fault and can be taken advantage of. They are free spirits and hate being confined, especially in the workplace. They possess an innate ability to help others in need. Instead of trying to change other people, they accept them for who they are and are more concerned with others' problems than their own. Pisces are also generous and love to share with their fellow man. Romantic at heart, the Pisces loves to dream and enjoys being wooed, even if they later find out they've been misled. They love exotic places, hate to be criticized and would rather be in a submissive position than acting as a leader or manager. Famous Pisces include Seal, Cindy Crawford, Sharon Stone, Kurt Cobain, Ron Howard, Jennifer Love Hewitt, Bruce Willis, Jon Bon Jovi, Drew Barrymore and Eva Longoria.

I feel like saying "doh!". Of course I'm as Piscean as one can be!

And now horoscope.com: "Result: Mostly Pisces.You'd save the world if you could, but you know that's just not possible. You fantasize about achieving great things as a martyr, although you don't trust your luck. Anyway, martyrs don't get to see results. People confuse you easily - you see them as symbols of one thing or another, and suddenly they act like people. It can be a relief to avoid them altogether and indulge your worship of nature by savoring the solitude of wide open spaces. In love, you're a serial monogamist, loving passionately and then moving on when your partner discovers too much about you."