Cobra: India's Good Snake: Ignorance and superstition surround the cobra, threatening the members of this species which is helpful to man. Blue Babies: David Suzuki talks with cardiologist Peter Olley of the Hospital for Sick Children in Toronto concerning the pharmaceutical and medical treatment of infants born with a congenital heart defect. High Flight: Research is beginning to uncover the reasons why birds can fly at high altitudes that would cause brain damage in humans.