The video shows a close-up of a tadpole swimming in a tank. The tadpole has a brownish body with a lighter underbelly and dark spots on its back. Its head is triangular with two small, black eyes and a small mouth. The tadpole's tail is long and thin, with a slight curve at the end. The water in the tank is clear, and the bottom is visible, showing some rocks and plants. The tadpole moves slowly and gracefully, using its tail to propel itself through the water.