Kakhi are animals that live in fresh water and eat bacteria and little tiny alglee they have a in siphon and a out siphon.in siphon is were there mouth is a kakahi has two mouths one on it left side and one on the right.They need four things to stay alive and for there eggs witch are food,mud,shelter,water. They need water to stay alive they cant breath with out fresh water and like humens cant breath without air.