UNDERWATER MS of terrapin climbing on lake shore. UNDERWATER MCU of snail passing by terrapin. UNDERWATER MS of snail shell on rock, ZOOM OUT to shell graveyard on lakebed. UNDERWATER MS of cichlid darting away. UNDERWATER MS of cichlid darting into shell. UNDERWATER MS of cichlid swimming into shell. UNDERWATER MCU of predator cichlid proding shell. UNDERWATER CU of baby cichlids hiding in shell. UNDERWATER MS of water snake slithering along lake floor. (609)