Two nature documentaries. The 1988 Cane Toads: An Unnatural History (in 35-millimeter, 47 min.) is a cautionary tale about playing God. Writes Jonathan Rosenbaum: “In 1935, 102 cane toads were brought into Australia in the hope that they’d eliminate sugarcane grubs; instead they quickly overran the countryside, eating everything except the grubs. In this featurette, filmmaker Mark Lewis extracts as much grim humor as possible from the problem in all its grotesque manifestations: the strange mating habits of the toads, the ecological disaster caused by their poison (which also serves as an illegal hallucinogenic drug), their popularity as pets, and so on.” On the same program, the 56-minute video The Natural History of Chickens (2000).