National Geographic : 1992 Sep
Geo Geoguide is designed to help adult readers of NATIONAL GEOGRAPHIC capture the interest of younger readers through discussion of a feature in the magazine. The questions and activities below are keyed to the article "Dolphins in Crisis," which begins on page 2. Geoguide FRANCIANA will be published four times a year. (PONTOPORIA BLAINVILLEI) DOLPHINS INCRISIS MSOUTHE AMERICA nlr rt m ut.ov , rn.l.lll.ar .. .......... ..... .. THIS HECTOR'S DOLPHINWAS ENTANGLEDIN A GILL NET INTENDED FOR CATCHINGFISH OFF THE COAST OF NEWZEA LAND. ALONGTHE EAST COAST OF SOUTH AMERICA, THE FRANCISCANA(UPPER LEFT) FALLSVICTIMTO NETS MEANT FOR SHARKS. BECAUSE DOLPHINS BREATHE AIR, THEY DIE WHEN TRAPPED UNDERWATER. -- __ EUROPE... INDUS RIVER SDLPHINj AFRICA . Indian ' ^^t' t-i'? - " % VAQUITA (PHOCOENASINUS) S< , .. ANTARCTICA FOUR OF THE MOST ENDANGERED DOLPHINS AND PORPOISES * Dolphins and porpoises inhabit rivers and oceans throughout the world-fresh water and salt, deep water and shallow, cold water and warm. On the map above, locate where four of the most endangered species live. Why might these places be dan gerous to dolphins and porpoises? * Pollution increasingly threat ens dolphin and porpoise habi tats. What is a habitat? What are their habitats? Does pollu tion hurt your habitat? * Dolphins and porpoises often become entangled in nylon nets. To sense how it might feel to be A PROGRAM IN HAWAIIACQUAINTSCHILDRENWITH BOTTLENOSEDOLPHINS. THE MAMMALS'BEST PRO TECTIONMAYBE THROUGH EDUCATINGPEOPLE. trapped in a net, take a rubber band and stretch it across the back of your hand, looping the ends around your thumb and lit tle finger. Without using your other hand or mouth, try to free yourself from the rubber band. * In what ways are wild animals important to people? Why is it important to preserve dolphins and porpoises? Are laws alone enough to save them? What might you do to help save these marine mammals?