New beech leaves, Gribskov Forest in the northern part of Sealand, Denmark. Malene Thyssen, Own work, CC BY-SA 3.0, Link.
John Bellamy Foster is the editor of
Monthly Review and a professor of sociology at the University of Oregon. Brett Clark is associate editor of
Monthly Review and a professor of sociology at the University of Utah. Hannah Holleman is a director of the Monthly Review Foundation and an associate professor of sociology at Amherst College.
“The old Greek philosophers,” Frederick Engels wrote in
Socialism: Utopian and Scientific, “were all born natural dialecticians.”
1 Nowhere was this more apparent than in ancient Greek medical thought, which was distinguished by its strong materialist and ecological basis. This dialectical, materialist, and ecological approach to epidemiology (from the ancient Greek
The African clawed frog, a species native to southern Africa, is one of the most successful invaders in the world. Part of the reason is that it has been of particular interest to scientists for a long time.
This frog has had a long history in science since its original description in 1802. It is an atypical frog, with claws on its toes, and spends most of its time in water – unlike other frogs. This fascinated many researchers. They also realised these frogs are easy to maintain in captivity, and even breed under these conditions. So they were useful for dissection in science education and a model organism in physiology research.