WS of rain forest interior, much sun, CRANE DOWN to MCU of croton plant. VAR (only ECU and CU, FA, SA) of "singing" caterpillar. VAR (including ECU, CU, MWS, SA) of croton plant, caterpillar moving about on plant, secreting sugary substance eaten by ant as it also defends caterpillar (symbiotic relationship); caterpillar eating croton plant and leaves of plant. VAR ECU FA and SA of "singing" caterpillar being placed on microphone with tweezers; portrait of face of caterpillar "singing". (41280)