SKIP CONTENT ADVERTISEMENT HIPPOPOTAMUS HIPPOPOTAMUS AMPHIBIUS AMPHIBIANS BIRDS BUGS FISH INVERTEBRATES MAMMALS PREHISTORIC ANIMALS REPTILES RANGE AUDIO FAST FACTS MAMMAL HERBIVORE AVERAGE LIFE SPAN IN THE WILD UP TO 40 YEARS INCHES GROUP SCHOOL SIZE PLEASE ENTRY YOUR HIPPOPOTAMUSES LOVE THE GREEKS THE RIVER HIPPOS SPEND HOURS SUBMERGED RIVERS LAKES KEEP MASSIVE BODIES COOL AFRICAN GOOD HOLD BREATH UNDERWATER LARGE ENOUGH SIMPLY WALK STAND THE LAKE LIE THE SHALLOWS EYES NOSTRILS HIGH BREATHE BASK SHORELINE SECRETE GAVE RISE THE MYTH SWEAT BLOOD LIQUID ACTUALLY SKIN SUNBLOCK PROTECTION LEAVE WATER TRAVEL OVERLAND MILES POUNDS FOOD INTAKE ON LAND MAY RUN MATCH SPEED SHORT CALVES WEIGH NEARLY BIRTH CLOSING EARS FEMALE CALF SOON AFTER BIRTH MOTHER YOUNG JOIN ONCE LIVE IN EASTERN CENTRAL AND SOUTHERN POPULATIONS SHARE EMAIL SNOW LEOPARDS TAGGED AFGHANISTAN NOSE CONSERVATION GRIZZLY TEACHING CUBS BONOBO ALPHA MOOSE DUGONG AMERICAN BISON CARIBOU MANATEE HORSE PRONGHORN GIRAFFE ROCKY MOUNTAIN BIGHORN SHEEP WALRUS WATER BUFFALO ZEBRA FEATURES ENDANGERED ANIMALS QUIZ THE LOSS ANIMAL SPECIES IRREVERSIBLE POTENTIALLY NOT TO MENTION FACE THE FACTS CRITTERCAM STUDY RARE SPECIES HAWAIIAN MONK SEAL SEAL TENURE PARADISE CLOSE SEALS HOT PURSUIT THEYRE LESS WHALES ROCKET PACIFIC SHALLOWS GORGE DIVE IN ANIMAL CONSERVATION FIND NATIONAL GEOGRAPHIC SOCIETY SAVE ALL OVER LEARN YOU CAN NAT GEO WILD INCREDIBLE MISSION CRITICAL MONSTER YUKON VET DESTINATION WILD TV SCHEDULE PRAIRIE DOGS SERIAL KILLERS MURDER COMPETITION CALL MEET RARE BIRDS SLAUGHTERED DOGS DIABETES CANCER READ NATIONAL GEOGRAPHIC ELEPHANT READING ANCIENT COMIC STRIP BIG CATS INITIATIVE MUSHING THE DOG DAYS SUMMER WEIRD WILD PROBLEM FAVORITE FELINES JELLYFISH SEA OTTERS SPINOSAURUS
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