Adrian V. Jaeggi

The paper challenges the assumption that early placental mammals were solitary by showing ancestral social organization included pair-living and intraspecific variation.

This study tracks cognitive trait development in meerkats, finding trait-specific developmental rates and individual variation, with physical problem-solving showing consistency linked to ecological demands.

This study analyzes intraspecific variation in social organization across Artiodactyla using Bayesian phylogenetic models, finding that ancestral artiodactyls had variable social organization and that body size and sexual dimorphism influence social structure.