Young equestriennes Mallory and Ting don faux horse ears, positioned to signal both contentedness and aggression, to investigate how their horses communicate. Keshia and Ashley visit the New Jersey Aquarium to explore ways to keep the African penguins busy and active, by observing their behavior at feeding time. Neurobiologist Erich Jarvis studies birds and their songs, to learn how the brain controls complex behaviors, such as language.

Originally released by Big Media Holdings LLC, 2013. Streaming video file encoded with permission for digital streaming by Infobase on February 10, 2017.

Horse Ear Experiment (5:18); --Horse Ear Experiment Results (5:20); -- Characteristics of African Penguins (4:10); -- Penguin Stimulus Experiment (3:48); -- Riddle Answer (0:54); -- Credits: Neurobiology: Dragon Fly TV (0:47); .