Camel (in rhythmic landscape with trees) were also created at this time. This is the period when the artist was working and teaching at the Bauhaus in Weimar under the direction of Walter Gropius. The task of teaching caused Klee to meditate on the problems of art and as a result he produced what Herbert Read called "the most profound and illuminating statement of the aesthetic basis of the modern movement in art ever made by a practising artist". Camel (in rhythmic landscape with trees) Camel (in rhythmic landscape with trees) ["German: Kamel (in rhythmischer baumlandschaft)"] is a painting by Swiss artist Paul Klee in the
Mercury in fish of successive trophic levels: zooplankton, small nekton, larger fish, and so on. The older that such fish become, the more mercury they may have absorbed. Anything that eats these fish within the food chain also consumes the higher level of mercury that the fish have accumulated. This process explains why predatory fish such as swordfish and sharks or birds like osprey and eagles have higher concentrations of mercury in their tissue than could be accounted for by direct exposure alone. Species on the food chain can amass body concentrations of mercury up to ten times higher than the species they