An octopus that mimics toxic sea creatures, the tobacco plant sends out an SOS when attacked, the genetic differences between ant social castes, unusually high records of jellyfish swarms this summer and Simon Levin discusses the evolution of ecology and where it is headed next. Here are stories in ecology wrapping up the month of August.
Scientists have found that the parasitic fungus Ophiocordyceps unilateralis has possibly been invading carpenter ants (Camponotus) for 48 million years. The parasite not only infects the ant, but it manipulates the ant’s behavior, influencing it to bite the underside of the leaf at the veins. Once the ant hits an optimal location, the fungus grows rapidly, killing the ant and preparing it to release a new spore.
Nutritious, chemical-free and all-natural, insects are featured as the main protein several Latin American, Asian and African countries. For example, in the Santander region of Colombia, leaf-cutter ants (called “hormigas culonas”) are sometimes eaten roasted, salted and have a slightly acidic taste. Mopane worms—the caterpillar for the moth Gonimbrasia belina—are popular in Botswana and are served dried or rehydrated with sauces and other ingredients.