Our lab is motivated to understand the interface between social behavior and reproductive decision-making. We take a proximate and ultimate perspective on studying behavior, development, and cognition, primarily in rodents (e.g., prairie voles and African pouched rats). We use a combination of lab and field work, neural manipulations, histology, and genomic/epigenetic approaches to understand individual variation in genes, brain and behavior; monogamy and social attachment; alternative reproductive tactics; parental care; early-life social influence on development; social & spatial cognition; mate choice; animal communication; reproductive decision-making; and the substrates governing the social brain.