Amphibians and fishes are highly susceptible to even minute amounts of foreign chemicals in their habitats. As such, their current population declines should serve as an important “early warning signal”, forecasting problems that will eventually affect other animals and ourselves.
An odd twist to this sensitivity issue among frogs is that an injection of gonadotrophin, a [...]

While thinking about amphibian learning capacities recently, I was reminded of an experiment recounted in the book Animal Behavior (Time, Inc., 1965), written by Niko Tinbergen, one of the giants in the study of ethology (animal behavior). The experiment was conducted at the famous Archbold Research Station in Florida, in the 1960’s.
The robber fly, which [...]