Sword Fish

Description

The Swordtail has a long growth like a sword on his tail, which is how he got his name. He lives in small ponds in South America. If the pond dries out in summer, he gets to another one across dry land. He coils up like a spring, uses his sword as a lever and does a little jump. He moves along like this in leaps until he comes to more water. When he is swimming, he uses his sword like a rudder, to steer. In the picture it has only one sword, but they sometimes have two, three, or even five.