There is always a dart stored in the radular sac and they may be also used in self-defense when the snail feels threatened.
A dart may be used in self-defense when the snail feels threatened. There is always a dart stored in the radular sac.
There is always a dart stored in the radular sac. A dart may be used in self-defense when the snail feels threatened.
There is always a dart stored in the radular sac. A dart may be used in self-defense when the snail feels threatened.