Mardi Gras masks A critically endangered, six-week-old, female, baby gorilla at the Cincinnati Zoo Sonora sucker, Catostomus insignis, at Mora National Fish Hatchery Newfoundland Puppies against white background. A feeding hawksbill sea turtle in Cozumel, Mexico English bulldog sleeping in cute and funny position, wrapped in white blanket. Swift fox kit, Pawnee National Grassland, Colorado Kitten Sleeping in Bowl Gray and white tabby cat and an orange ginger cat nose to nose Close-up of a cat's face Portrait of a pair of Megalosaurus dinosaurs A three-month-old baby chimpanzee, at Tampa's Lowry Park Zoo High angle view of a Great blue heron looking over water (Ardea herodias) Close-up view of a lizard's face A great hornbill, Buceros bicornis, at the Houston Zoo Leopard (Panthera pardus) lying in tree Ceratosaurus was a large predatory dinosaur from the Late Jurassic Period Kitten Sleeping in Bowl Close-up of camel's head in bright evening light, United Arab Emirates A black Labrador mix puppy dog drinks from a water hose Yutyrannus huali is a feathered tyrannosauroid from the Early Cretacous of China Sleeping Poodle puppy Tyrannosaurus rex roaring A mountain quail, Oreortyx pictus, at Omaha's Henry Doorly Zoo American alligator on black background. A brown caiman, Caiman crocodilus fuscus, at Lisbon Zoo in Portugal Queen Parrotfish feeding on algae A pied crow, Corvus albus, at Zoo Atlanta A Eurasian black vulture, at The Living Desert in Palm Desert, California Brown cuckoo dove, Macropygia phasianella, at Healesville Sanctuary Portrait of a seal in water Kenya, Male lion snarling in Ol Pejeta Conservancy, Laikipia Country Common Octopus guards its lair A federally threatened Canada lynx at the Point Defiance Zoo and Aquarium Close-up of long haired calico cat. Donkey (Equus hemonius) wearing straw hat A pack of carnivorous Tyrannosaurus rex dinosaurs during Earth's Cretaceous period. Sitting, Watching and Waiting Boxer dog with a tennis ball in its mouth A close view of a northern spotted owl, Strix occidentals occidentals Gorgosaurus running across an open desert An Iberian wolf, Canis lupus signatus, at the Lisbon Zoo in Portugal A vulnerable secretary bird, Sagittarius serpentarius, at the Toronto Zoo Portrait of a Finnish Spitz dog smiling A critically-endangered Sumatran tiger at Zoo Atlanta Edward's fig parrot, Psittaculirostris edwardsii, at Loro Parque Fundacion Jewel Grouper, Cephalopholis miniata Mosasaurus hoffmanni swimming in prehistoric waters Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44