PROBLEM TO BE SOLVED: To provide a waterer that can be used even in a zero-gravity space and that hardly gets out of order while easily achieving cost reduction and miniaturization.SOLUTION: A waterer for supplying a beverage to a rearing animal includes: a storage container for housing the beverage a water supply part for supplying the beverage to the outside an elastic body that is installed within the storage container and that pushes the beverage toward the water supply part and a stopper that suppresses supply of the beverage by closing a water supply port of the water supply part and that discharges the beverage from the water supply port depending on an external force associated with a water drinking action of the rearing animal.
