Ecology (1) Discipline (1) Reproduction (1) Costs (1) Terms and phrases (1) Terms and phrases (1) Notions (Philosophy) (1) Zoology (1) Yarn (1) Vision (1) Thread (1) Success (1) Stock companies (1) Social structure (1) Profit (1) Primates (1) Natural selection (1) Mutualism (1) Mechanical movements (1) Mammals (1) Kin selection (Evolution) (1) Insects (1) Fishes (1) Economics, Mathematical (1) Economics (1) Econometrics (1) Corporations (1) Cooperation (1) Concepts (1) Birds (1)