Look underground. It’s naked mole rat! iKnow Episode 21 The Secret Letter “N” explores life underground and new possibilities. Naked mole rat is an archaeologist for the Pride. He finds letters and clues in the dirt. Naked mole rat understands the Earth. Naked mole rat’s job is very important. He learns things about the planet by digging in the dirt. Naked mole rat helps young viewers uncover the secrets of the Sunmoona Pride, language and science.