Fyrnocks are silicon-based creatures that appear in the Disney XD animated series, Star Wars Rebels. They live on the planet of Fort Anaxes and are very sensitive to sunlight. However, in darkness, they are deadly hunters. When Hera Syndulla and Sabine Wren stop on Fort Anaxes to find supplies, they are attacked by the Fyrnocks, which they keep at bay until the rest of the crew of the Ghost rescue them.