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The evolution of a defensive gland in beetles shows how organs can arise from novel cells carving out new functional niches for their neighbors.
Carpenter ants need endosymbiotic bacteria to guide the early development of their embryos. New work has reconstructed how this deep partnership evolved.
Puzzle solvers explored how evolution may have used negative and positive control mechanisms to shape the conflicting parental functions of reproduction and child rearing.
Two dynamic, seemingly opposing forces likely played an important role in the evolution of reproduction and child rearing in social animals like bees and humans.
Corina Tarnita deciphers bizarre patterns in the soil created by competing life-forms.
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