Tony Heald / RF- Hippopotamus (Hippopotamus amphibius) surrounded by water lettuce. Kruger National Park, South Africa. (This image may be licensed either as rights managed or royalty free.)
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Tony Heald / Hippopotamus (Hippopotamus amphibius) in pond, surrounded by Water lettuce (Pistia stratiotes). Mana Pools National Park, Zimbabwe.
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Denis-Huot / RF- Hippopotamuses (Hippopotamus amphibius) in water lettuces, Masai Mara Game Reserve, Kenya. (This image may be licensed either as rights managed or royalty free.)
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Denis-Huot / African jacana (Actophilornis africanus) walking on Water Lettuce (Pistia stratiotes) Masai-Mara Game Reserve, Kenya
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Denis-Huot / African jacana (Actophilornis africanus) walking on Water Lettuce (Pistia stratiotes) Masai-Mara Game Reserve, Kenya
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Denis-Huot / African jacana (Actophilornis africanus) walking on Water Lettuce (Pistia stratiotes) Masai-Mara Game Reserve, Kenya
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Denis-Huot / African jacana (Actophilornis africanus) walking on Water Lettuce (Pistia stratiotes) Masai-Mara Game Reserve, Kenya
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Winfried Wisniewski / Hippopotamus (Hippopotamus amphibius) in water lettuce, Masai Mara, Kenya
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Pete Oxford / Spectacled Caiman (Caiman crocodilus), Hato Masaguaral working farm and biological station, Venezuela
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Pete Oxford / Spectacled Caiman (Caiman crocodilus), Hato Masaguaral working farm and biological station, Venezuela
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Pete Oxford / Savanna Side-necked Turtle (Podocnemis vogli) pair basking, Hato Masaguaral working farm and biological station, Venezuela
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Pete Oxford / Savanna Side-necked Turtle (Podocnemis vogli) basking, Hato Masaguaral working farm and biological station, Venezuela
