Can animals survive without flies?
Animals could survive without frogs if they have any other kind of diet but while that some animals need to eat fles to survive just like an anteater need ants in their diet.
No, all animals require water, Some, however, can go an entire lifetime without once drinking a drop of liquid water. They are able to extract water from the food they eat and have very efficient excretory systems. Some animals can also go into a state of suspended animation during times when water is not available. and are only active when they have sufficient water to survive.