Ingo Arndt / Ostrich (Struthio camelus) female chasing away rival, Masai Mara National Reserve, Kenya
00763054
Ingo Arndt / African Lion (Panthera leo) juveniles play fighting, Masai Mara National Reserve, Kenya
00763053
Ingo Arndt / African Lion (Panthera leo) juveniles play fighting, Masai Mara National Reserve, Kenya
00763052
Ingo Arndt / African Lion (Panthera leo) male portrait, Masai Mara National Reserve, Kenya
00763051
Ingo Arndt / African Lion (Panthera leo) female, Masai Mara National Reserve, Kenya
00763033
Ingo Arndt / African Jacana (Actophilornis africana) foraging near Hippopotamus (Hippopotamus amphibius) amid water lettuce, Masai Mara National Reserve, Kenya
00762939
Ingo Arndt / Alpine Marmot (Marmota marmota) calling, Austria
00762938
Ingo Arndt / Alpine Marmot (Marmota marmota) yawning, Austria
00762915
Ingo Arndt / African Lion (Panthera leo) male, Masai Mara National Reserve, Kenya
00762906
Ingo Arndt / White Rhinoceros (Ceratotherium simum) mother and juvenile, Lake Nakuru, Kenya
00762888
Ingo Arndt / White Rhinoceros (Ceratotherium simum) males facing off, Lake Nakuru, Kenya
00762847
Ingo Arndt / Monarch (Danaus plexippus) butterfly feeding on nectar of Goldenrod during migration, East Coast, USA
00762809
Ingo Arndt / Monarch (Danaus plexippus) butterflies gathering to drink water and take up minerals, Michoacan, Mexico
00762751
Ingo Arndt / Emperor Scorpion (Pandinus imperator) photographed under ultraviolet light, Africa
00762745
Ingo Arndt / Blue Morpho (Morpho peleides) butterfly wing with false eyespots, Costa Rica
00762670
Ingo Arndt / Blue Morpho (Morpho peleides) caterpillar hatching out of egg, Costa Rica
00762669
Ingo Arndt / Blue Morpho (Morpho peleides) caterpillar hatching out of egg, Costa Rica
00762665
Ingo Arndt / Blue Morpho (Morpho peleides) butterfly egg, Costa Rica
00762600
Ingo Arndt / The American Falls at Niagara Falls, New York
00762592
Ingo Arndt / Researcher Jim Lewis curator of the true bug collection at INBio, San Jose, Costa Rica
00762589
Ingo Arndt / Water Boatman (Notonecta glauca) with reflection underwater, a true bug of the Heteroptera suborder, Europe
00762587
Ingo Arndt / Pond Skater (Gerris sp) using surface tension to walk on water, a true bug of the Heteroptera suborder, Europe
00762520
Ingo Arndt / Two scientists from the Alfred-Wegener Institute, collecting tide pool samples, North sea, Helogland, Germany
00762515
Ingo Arndt / Brown-throated Three-toed Sloth (Bradypus variegatus) hanging in tree, Amazon, Peru
00762369
Ingo Arndt / Black-handed Spider Monkey (Ateles geoffroyi) hanging by its prehensil tail in forest canopy, Santa Rosa National Park, Costa Rica
00762340
Ingo Arndt / Scarlet Macaw (Ara macao) close up, portrait, Amazon ecosystem, Peru
00762339
Ingo Arndt / Scarlet Macaw (Ara macao) close up, portrait, Amazon ecosystem, Peru
00762336
Ingo Arndt / Blue and Yellow Macaw (Ara ararauna) eating fruit, Amazon ecosystem, Peru
00762323
Ingo Arndt / Chimpanzee (Pan troglodytes) juvenile fishing for termites, endangered, Gombe Stream National Park, Tanzania
00762311
Ingo Arndt / European River Otter (Lutra lutra) sisters resting, Europe
00762279
Ingo Arndt / Eastern Grey Kangaroo (Macropus giganteus) joey reaching into mother's pouch, Wilson's Promontory National Park, Australia
Ingo Arndt / Mikeno Volcano (3634 meters) with lenticular cloud, Republic of the Congo in the Virunga heartland, view from Rwanda
00762222
Ingo Arndt / Mountain Gorilla (Gorilla gorilla beringei) juvenile, Parc National Des Volcans, Rwanda
00762221
Ingo Arndt / Mountain Gorilla (Gorilla gorilla beringei) baby, Parc National Des Volcans, Rwanda
00762216
Ingo Arndt / Mountain Gorilla (Gorilla gorilla beringei) Susa group showing male silverback, two females and two juveniles, Parc National Des Volcans, Rwanda
00762195
Ingo Arndt / Ctenophore (Beroe cucumis) showing typical symmetrical combs made of cilia, Weddell Sea, Antarctica