The video shows a chameleon perched on a branch, with a caterpillar in front of it. The chameleon opens its mouth and extends its tongue to catch the caterpillar, which it then swallows whole. The chameleon's skin is a mix of green and red, and it has a long, sticky tongue. The caterpillar is light blue and white, and it wriggles as the chameleon catches it. The background is blurred, but there are green leaves visible.