Safety First Crosswalk Accidents, Animal Ranking, Gluttony

Click the Caption button to activate subtitle Crosswalks should be the safest place on road But something is increasing the number of accidents of pedestrians What causes accidents on crosswalks Does ranking exist in animal society The production crew observed ducks which travel in line. Do ducks keep their rankings when taking a bath A stomach for meals and a separate stomach for desserts Some people always have desserts even after they ha