Freshwater crab Nature (IUCN); of the species for which data are available, 32% are threatened with extinction. For instance, all but one of Sri Lanka's 50 freshwater crab species are endemic to that country, and more than half are critically endangered. Freshwater crab There are around 1,300 species of freshwater crabs, distributed throughout the tropics and subtropics, divided among eight families. They show direct development and maternal care of a small number of offspring, in contrast to marine crabs which release thousands of planktonic larvae. This limits the dispersal abilities of freshwater crabs, so they tend to be endemic to small areas.
Food Chains (film) documentary about the same topic. He concluded that "Food Chains" was 'simultaneously inspirational and deeply depressing.' Writing for the "San Francisco Chronicle", Tara Duggan added that there were 'many chilling moments' in the documentary. In "The New York Daily News", Elizabeth Weitzman called the documentary 'unsettling,' concluding 'you will certainly leave the theater more enlightened than when you arrived.'. Jeannette Catsoulis of the New York Times called the film 'rousing' and 'emphatic and empathetic.'. Food Chains (film) Food Chains is a 2014 American documentary film about agricultural labor in the United States directed by Sanjay Rawal. It was the Recipient