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The largest known species of fluke is Fasciolopsis buski, which most often attacks humans and livestock. One of these flukes can be up to 7.5 cm (3.0 in) long and 2 cm (0.79 in) thick. [236] Tapeworms The largest known species of tapeworm is the whale tapeworm, Polygonoporus giganticus, which can grow to over 30 m (98 ft). [237] [238]
The giant and colossal squids have the largest recorded eyes of any living animal, with a maximum diameter of at least 27 cm (11 in). [6] Only the extinct ichthyosaurs are known to have had larger eyes. [6] The giraffe has the longest neck of any land mammal. [7] The north Pacific right whale has the largest testes of any mammal. [8]
Sexual dimorphism is usually reversed, with the males being larger, but the females of all baleen whales are usually five percent larger than males. Sexual dimorphism is also displayed through whale song, notably in humpback whales where the males of the species sing elaborate songs. Male right whales have bigger callosities than female right ...
The bigger the animal, the thicker their legs have to be so they could support the weight without snapping. Meanwhile, a whale floats in water without the stress of gravity.
A number of bulges for muscle attachment on the humerus were unique characteristics of Patagotitan. In a depression (fossa) on the front upper portion of the humerus, there was a pair of scars above each other, with the top one being wider than tall and the bottom one being taller than wide; this was where the coracobrachialis muscle inserted.
Restoration of the skeleton of O. megalodon based on modern lamniforms, with known elements highlighted. Megalodon is represented in the fossil record by teeth, vertebral centra, and coprolites. [35] [67] As with all sharks, the skeleton of megalodon was formed of cartilage rather than bone; consequently most fossil specimens are poorly ...
Diagram of a human eye; note that not all eyes have the same anatomy as a human eye. The mammalian eye can also be divided into two main segments: the anterior segment and the posterior segment. [10] The human eye is not a plain sphere but is like two spheres combined, a smaller, more sharply curved one and a larger lesser curved sphere.
The beak is considerably smaller than some found in the stomachs of sperm whales, [55] [56] suggesting other colossal squid are much larger than this one. [55] [56] The eye is 27 cm (10 + 1 ⁄ 2 in) wide, with a lens 12 cm (4 + 1 ⁄ 2 in) across. This is the largest eye of any known animal. [30]