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Toxopneustes pileolus, commonly known as the flower urchin, is a widespread and commonly encountered species of sea urchin from the Indo-West Pacific.It is considered highly dangerous, as it is capable of delivering extremely painful and medically significant stings when touched.
Also present are ricinine, an alkaloid, and an irritant oil. According to the 2007 edition of the Guinness Book of World Records, the castor oil plant is the most poisonous in the world, though its cousin abrin, found in the seeds of the jequirity plant, is arguably more lethal. Castor oil, long used as a laxative, muscle rub, and in cosmetics ...
Rafflesia (/ r ə ˈ f l iː z (i) ə,-ˈ f l iː ʒ (i) ə, r æ-/), [2] or stinking corpse lily, [3] is a genus of parasitic flowering plants in the family Rafflesiaceae. [4] The species have enormous flowers, the buds rising from the ground or directly from the lower stems of their host plants; one species has the largest flower in the world.
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Photo editors at the magazine chose the top 20 photos from a selection of 2.3 million images. Every year, photographers at National Geographic travel around the world to share stories through ...
Wander through this list of the most beautiful flowers our editors love, like roses, tulips, ranunculus, lilies of the valley, dahlias, and more—it's like a virtual stroll through the most ...
Toxopneustes is a genus of sea urchins from the tropical Indo-Pacific.It contains four species.They are known to possess medically significant venom to humans on their pedicellariae (tiny claw-like structures).
The flower of Rafflesia arnoldii grows to a diameter of around one meter (3.3 feet), [2] weighing up to 11 kilograms (24 lb). [18] These flowers emerge from very large, cabbage-like, maroon or dark brown buds typically about 30 cm (12 in) wide, but the largest (and the largest flower bud ever recorded) found at Mount Sago , Sumatra in May 1956 ...