The first image shows a close-up of a sandy surface with numerous small, round, blue objects scattered across it. The objects appear to be some sort of small, round, blue stones or pebbles. The background is a gradient of brown tones, suggesting a natural environment such as a beach or a desert. The title 'CHEMICAL ECOLOGY OF VERTEBRATES' is displayed at the top of the image in white text, with the words 'CHEMICAL ECOLOGY' in bold font. The image has a scientific or academic feel to it.