Okavango Delta, Botswana (IMAGE) Northwestern University Caption The Okavango Delta's patchy landscape is a good example of the "Goldilocks landscape" where the ability to plan results in a huge survival payoff. Credit Tim Copeland Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.