Wikipedia:WikiProject Animal anatomy/Recognized content

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Chromatophore

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Did you know? articles

... that the ampullae of Lorenzini enable sharks to sense electric fields? (2022-10-10)
... that the modern study of human anatomy is considered to have been founded by Andreas Vesalius (anatomical drawing pictured) in the sixteenth century? (2013-07-27)
... that despite over a hundred years of scientific study, fierce debate still rages about how arthropods' heads are constructed? (2007-07-16)
... that scientists first discovered the biological screw joint in the Papuan weevil Trigonopterus oblongus? (2011-08-07)
... that birds' eyes have three lids, including the nictitating membrane (pictured), which moves across the eyeball horizontally? (2008-07-16)
... that you started out as a blastula? (2013-05-04)
... that the casques of some large hornbill species (example pictured) can take up to six years to reach their full size? (2021-05-08)
... that some hamsters hide their young in their cheek pouches to carry them when they fear danger? (2012-11-09)
... that the cloven hoof is a characteristic of mountain goats, certain kosher foods and in some traditions, the Devil? (2007-12-07)
... that a corallite is a cup for a coral? (2015-05-05)
... that the black sea cucumber (pictured) can emit a mass of sticky cuvierian tubules to enmesh a potential predator? (2013-03-13)
... that according to Traditional Chinese Medicine, deer penis is said to enchance virility in men, and was added to the list of banned substances during the 2008 Beijing Olympics? (2010-06-30)
... that you can count lines in dinosaur teeth to determine their age? (2017-12-20)
... that colour vision with resolution and clarity are the most prominent features of eagles' eyes (pictured), and hence the epithet given to sharp-sighted people is "eagle-eyed”? (2012-11-12)
... that electric organs are composed of stacks of specialised cells that can generate electricity? (2023-01-19)
... that the human mouth forms when the opening that becomes the anus tunnels through the embryo and comes out the other side? (2008-12-11)
... that Endochondral ossification is one of two types of bone formation and is the process responsible for much of the bone growth in vertebrate skeletons? (2004-12-24)
... that femoral pores are a part of a secretory gland found on the thighs of certain lizards which release pheromones to attract mates or mark territory? (2009-12-23)
... that fins are used on artefacts and by aquatic animals such as killer whales (pictured) to generate thrust, to control motion, or to regulate temperature? (2012-11-29)
... that some species of fish undergo a genetically programmed sex change during their development? (2007-06-08)
... that some species of waterfowl lose all their flight feathers (pictured) at once while moulting, rendering them incapable of flight? (2007-05-29)
... that the ear's hair cells encode the information from the fluid waves of the cochlea for use by the auditory nerve? (2004-08-11)
... that Hunter-Schreger bands strengthen the enamel of the incisor in rodents? (2010-01-24)
... that pit vipers and some boas and pythons have specialized facial pits for sensing infrared radiation? (2007-12-07)
... that possible traces of interdigital webbing have been preserved in fossils of pakicetids, the ancestors of whales? (2009-12-29)
... that the largest body parts do not all belong to the largest animal, and that there are numerous Guinness World Records for the largest human body parts? (2006-08-10)
... that some hermaphrodite snails and slugs pierce each other with love darts (pictured) during mating? (2008-10-09)
... that, amongst the kidneys of the vertebrates, only those of mammals and birds can produce concentrated urine? (2023-04-04)
... that the epidermis of the mantle, an organ in mollusks, secretes the calcium carbonate that creates their shell? (2005-01-28)
... that the anatomical term "mesentery" is derived from the Greek mesos, meaning "in the middle", and enteron, "intestine"? (2015-06-10)
... that in Swabia, the length of a housefly's penis is an idiomatic expression for a very short length? (2013-08-31)
... that at least twelve different nomenclatures have been proposed for features of the molar in muroid rodents? (2010-03-15)
... that mushroom bodies have nothing to do with fungi, but are part of the brain anatomy of arthropods? (2004-03-17)
... that the spines of a sea urchin (two pictured) are connected to other ossicles by ball and socket joints? (2013-05-16)
... that many rice rats have pits at the back of their palates recessed into a deep depression? (2010-01-23)
... that the hirola (pictured) is often referred to as the "four-eyed antelope" due to its large preorbital glands? (2012-05-30)
... that oysters deposit pseudofeces in such amounts that they can clean up an entire estuary? (2008-09-30)
... that while they are primarily feeding structures, radioles (pictured) also serve as respiratory organs for certain sessile marine polychaetes? (2010-05-09)
... that a galloping horse must breathe with every stride, due to the movement of the gut contents pushing forward and back on the diaphragm? (2007-08-02)
... that the amorphous phosphate mineral santabarbaraite was named after the Italian mining district Santa Barbara where it was discovered in 2003, but its name also honors Saint Barbara, the patron saint of miners? (2007-12-11)
... that the canine teeth of male baboons—which can be up to four times as long as those of females—are an example of a sexual dimorphism? (2008-06-01)
... that a siphon (example pictured) is used by some marine snails for tasting, by some clams for reproducing, and by octopuses for jet propulsion? (2008-11-21)
... that the chemicals responsible for the smell of freshly cut grass are a plant defense mechanism? (2023-08-19)
... that, in female bedbugs, the spermalege reduces the wounding costs caused by a male's needle-like penis? (2011-02-06)
... that in 1973, an experiment successfully demonstrated that spiders can spin webs in space? (2007-01-29)
... that prosimian primates like lemurs and slow lorises have a "second tongue" called a sublingua, which they use to clean their toothcomb? (2012-02-22)
... that some plants have tentacles, but octopuses have none (they have arms)? (2004-04-10)
... that one method of preparing a tiger penis for consumption is to place it dried, with testicles still attached, into a bottle of French cognac, whiskey or Chinese wine and let it soak for many weeks? (2010-07-05)
... that lemurs, lorises, and galagos have a special dental structure called a toothcomb (example pictured), which they use to comb their fur during grooming? (2012-03-19)
... that in rice rats living in the water, the tufts of hair at the base of the claws are reduced? (2010-04-08)
... that the deep water barreleye fish (pictured) is so named because of its unusual visual system which uses barrel-shaped, telescopic eyes that are generally directed upwards? (2011-10-04)
... that some water birds use their webbed feet (illustration shown) as an aid in elaborate courtship displays? (2019-02-21)
... that the Weberian apparatus, a set of modified bones that link the swim bladder and inner ear of some fishes, is a distinguishing characteristic of the superorder Ostariophysi? (2009-01-27)
... that in rodents, the position of the zygomatic plate varies from nearly horizontal to nearly vertical? (2010-01-25)