The image is a composite of two photographs and their corresponding sound waves. The left photograph shows two penguins standing on a rock, while the right photograph features one penguin standing on a rock. Below each photograph, there is a line graph with horizontal and vertical axes, representing sound waves.

The horizontal axis (X-axis) represents time in seconds, while the vertical axis (Y-axis) represents frequency in hertz (Hz). The graph displays sound waves from both photographs, showing how the sound intensity changes over time.

The graph for the left photograph shows a higher intensity of sound at lower frequencies compared to the right photograph. This suggests that the sound produced by the penguin on the rock in the left photograph is louder than that produced by the penguin on the rock in the right photograph.

Additionally, the graph includes a legend indicating different sound intensities represented by different colors:
- Light blue: Low intensity
- Dark blue: Medium intensity
- Red: High intensity

The graph provides a