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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] These measurements are of the partly collapsed specimen; alive, the eye was probably 30 [31] to 40 cm (12 to 16 in) across. [57] Inspection of the specimen with an endoscope revealed ovaries containing thousands ...
The giant squid has a sophisticated nervous system and complex brain, attracting great interest from scientists. It also has the largest eyes of any living creature except perhaps the colossal squid—up to at least 27 cm (11 in) in diameter, with a 9 cm (3 + 1 ⁄ 2 in) pupil (only the extinct ichthyosaurs are known to have had larger eyes). [18]
Gonatids and the loliginids Loligo and Lolliguncula also have proportionately somewhat larger eyes than Architeuthis. [165] Some sources state that the vampire squid (Vampyroteuthis infernalis) has the largest eyes of any animal relative to its size, with a 15 cm (5.9 in) specimen having eyes around 2.5 cm (0.98 in) in diameter. [171]
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]
Tarsiers are small animals with enormous eyes; each eyeball is approximately 16 millimetres (0.63 in) in diameter and is as large as, or in some cases larger than, its entire brain. [ 16 ] [ 17 ] The unique cranial anatomy of the tarsier results from the need to balance their large eyes and heavy head so they are able to wait silently for ...
Because the eye has a retina, lens, and nerves connected to the brain, it’s possible it was a fully working eye at some point in the animal’s evolutionary journey. But through the years, the ...
Typically, Old World monkeys (paleotropical) are larger than New World monkeys (neotropical); the reasons for this are not entirely understood but several hypotheses have been generated. [3] As a rule, primate brains are "significantly larger" than those of other mammals with similar body sizes. [4]
Credit: flickr. Most small mammals burn out fast, but Brandt’s bats laugh in the face of time. Despite being mouse-sized, they can live over 40 years, which makes them one of the longest-living ...