Author Image (IMAGE) Taylor & Francis Group Caption This is lead author Alison Cobb grooming a wild zebra in the Animal Orphanage at Nairobi National Park in 1991. Credit Stephen Cobb Usage Restrictions Please credit Stephen Cobb 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.