Slang definitions & phrases for joy-stick Expand. noun. 1  The control lever of an airplane (1910+) 2  The steering wheel of a car, esp a hot rod (1950s+ Hot rodders) 3  The control lever for a computer or video game (1967+)  An opium pipe (1940s+ Narcotics)
Like that Hamsa separates the good things from the bad things, Water birds separate good water from the bad water. It has got a sieve like structure (lamellae) in its mouth which separates water from mud. Probably this is what lead to the belief that Swans can separate milk from water and drink only milk.
What do snails drink? Snails and slugs are soft bodied animals which contain considerable amounts of water. As a result, they need to be very concerned with water conservation especially the semi-slugs and slugs who cannot retracted into their shells in drier times. This threat of dessication affects their behaviour.