Sara R: My animal

They are animals that live in not very depp tropical waters, in all North and South America. They haven´t got legs, teeth, stomach and scales. They have got a tail, a head and eyes. They aren´t dangerous, but if it´s necessary they use their tail to fight. They eat tiny invertebrates animals such as crustaceans. They can swim, but thay are not very good swimmers. They can change the color of their body to hide from their predators, and to get involve with their environment.