Lowland Dwarf Toads are practically impossible to spot because they hide in bushes, they are very camouflaged, and they are miniscule. They grow up to one inch (2.5cm) long. As tadpoles they are less than one centimeter long and stay in a small hole so they don't get eaten. Citation and more infrmation at https://www.ecologyasia.com/verts/amphibians/st-andrews-cross-toadlet.htm