National Geographic : 1988 Mar
lumps of tussock grass provide a bed for a South Ameri can sea lion and a hunting groundfor a striatedcaracara. Although sharply depleted by sheep grazing and once burned by hunters to flush out seals and feral pigs, the rich grass still supplies crucialshelter for the islands' uniquepanoply of wildlife. O 422 NATIONALGEOGRAPHIC(ISSN 0027-9358) IS PUBLISHEDMONTHLYBYTHENATIONALGEOGRAPHICSOCIETY,17THANDM STS. N.W ., WASHINGTON,D. C. 20036.$18.00 A YEAR,$2.25 A COPY. SECOND-CLASS POSTAGEPAIDAT WASHINGTON,D. C., AND ELSEWHERE.POSTMASTER:SENDADDRESSCHANGESTO NATIONALGEOGRAPHIC,P. 0. BOX2174, WASHINGTON,D. C. 20013.