Wild Wonders of Europe / Widstrand / RF- European bison / Wisent (Bison bonasus) released into Tarcu mountains nature reserve, Natura 2000 area, Southern Carpathians, Romania. May 2014. (This image may be licensed either as rights manag...

Staffan Widstrand / RF- Black bear (Ursus americanus) peering from behind a tree, Blue River, Clearwater, British Columbia, Canada, North America. (This image may be licensed either as rights managed or royalty free.)

Staffan Widstrand / RF- Marine Iguana (Amblyrhynchus cristatus) head portrait, Fernandina island, Galapagos, Ecuador. (This image may be licensed either as rights managed or royalty free.)

Wild Wonders of Europe / Widstrand / RF- European bison (Bison bonasus), Drawsko Military area, Western Pomerania, Poland, February. (This image may be licensed either as rights managed or royalty free.)

Staffan Widstrand / RF- Arabian Oryx (Oryx leucoryx) Dubai Desert Conservation Reserve, Dubai, UAE. (This image may be licensed either as rights managed or royalty free.)

Denis-Huot / RF- Lappet-faced vultures (Torgos tracheliotus) portrait, Masai-Mara Game Reserve, Kenya (This image may be licensed either as rights managed or royalty free.)