Small tropical lizards, known as geckos, are a type of lizard found in warm climates. They are typically small in size and have sticky feet that allow them to climb walls and ceilings. Geckos come in a variety of colors and patterns, and some species can even change color to blend in with their environment. They are nocturnal animals, meaning they are most active at night. Geckos are also known for their vocalizations, which range from chirps to barks.