The Crayfish and Snails have arrived! Living organisms in the classroom--and not simply goldfish--welcome the sunny weather in Room 17. The kids are learning about body structures, care and feeding, and the behaviors of crayfish and snails in Science. As they learned from sprouting seeds, animals, too, need food and water to survive, and the means of locomotion to get to it differ from one animal to the next. This kind of diversity in the animal world is one of the reasons this unit is one the students look forward to since the beginning of each year.