Stanford Researcher Builds Robotic Tadpole to Study Frog Vibrations

Billie Goolsby began her PhD research at Stanford University in 2020 after noting parallels between her own childhood communication and the vibration-based signals used by poison frog tadpoles. Goolsby was born hard of hearing. Her mother used touch-based cues similar to the wriggling dance tadpoles perform against a parent’s body to indicate hunger.

Tadpoles of certain poison frog species produce vibrations rather than vocal sounds. Parents interpret these movements to assess offspring needs. Goolsby and colleague Lauren O’Connell are examining how the vibrations translate into parental responses.

Their work focuses on parent-offspring communication in frogs. The robotic tadpole is designed to reproduce the specific vibration patterns observed in live tadpoles. Researchers plan to use the device to test which movement features trigger feeding behavior in adult frogs.