Today on Animal Instinct, we're joined by documentary filmmaker Yeray Lopez Portillo, who's working on a film about hunting dog culture in Spain. Yo Galgo tells the story of the galgo, a greyhound breed treated like goods rather than creatures. Used for hunting down hare, a strong hunting dog has a short shelf life, such that thousands are abandoned or killed at the end of each hunting season. Yeray tells us about his journey sharing the plight of the galgo on camera.