GEORGETTE DOUWMA / SCIENCE PHOTO LIBRARY GEORGETTE DOUWMA / SCIENCE PHOTO LIBRARY
Red lionfish in open water. Red lionfish (Pterois volitans) are highly venomous predatory marine fish. Their long dorsal spines are laced with a dangerous toxin and are normally used for defence. Photographed in the Lembeh Strait, North Sulawesi, Indonesia.
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