DR MORLEY READ / SCIENCE PHOTO LIBRARY DR MORLEY READ / SCIENCE PHOTO LIBRARY
Caiman. Close-up of the eye of a caiman containing a parasitic worm (red). Caimans belong to the alligator family. This species, Palaeosuchus trigonatus, also known as the smooth-fronted caiman, lives in fast-flowing rivers and streams in the rainforests of South America. One of the smallest species of crocodilians, adult smooth- fronted caimans usually measure less than a metre in length. Photographed in the Amazon rainforest, Ecuador.
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