question: What do some historians think made Wallace 's concept of natural selection different from Darwin 's ?
answer: Some historians have suggested that Wallace was actually discussing group selection rather than selection acting on individual variation .
turker_answer: Some historians think Wallace was actually discussing group selection rather than selection acting on individual variation .
rule-based: Some historians think made some historians have suggested that Wallace was actually discussing group selection rather than selection acting on individual variation Wallace 's concept of natural selection different from Darwin 's .