the frog's eardrum is located at tympanum on its body.
the frog's eardrum is located at tympanum on its body.
where is the frog's eardrum located on its body?
tympanum
the green tree frog is a plump, rather large tree frog, and can grow up to in length, with fully grown females being slightly larger than males. a distinctive fatty ridge is seen over the eye, and the parotoid gland is moderately large. the iris is golden and has a horizontally slit pupil, as is typical of the genus "litoria", and the tympanum (a skin membrane similar to an eardrum) is visible just behind the eye. the limbs are short and robust, and large adhesive discs are at the end of the digits which provide grip while climbing. the fingers are about one-third webbed, and the toes nearly three-quarters webbed. the dorsal color depends on the temperature and nature of the environment, ranging from brownish- or greyish-green to bright emerald green. the frog occasionally has small, irregularly shaped white spots on its back. males have a greyish, wrinkled vocal sac under the throat, while the throat of females is white. the ventral surface in both sexes is creamy-white and rough in texture.
australian green tree frog
during the rising social and political tensions in the austrian empire leading to the revolutions of 1848, peter voigtländer had joined the political cause of the democrats and also became adjutant to the commander of the vienna national civil guard—general . as the revolutions escalated during the vienna uprising of october 1848, the counter-revolution had strengthened with full force, and general messenhauser of the revolting national civil guard, like many others—were executed. voigtländer at that time had in perception of the power relations withdrawn from the vienna national civil guard and with his family took refuge in a suburb of vienna. on the wishes of peter voigtländer's wife and when the march revolutions of 1848 hindered the further development of the young photographic company, the family promptly re-located from vienna to his wife's hometown braunschweig, where from 1849 voigtländer established a subsidiary production site, granted on a provisional "concession for the pursuit of a trade", issued by the city directorate with a term of five years. in september 1852, peter voigtländer was successfully awarded a so-called "land-cooperative" (german "markgenossenschaft") and issued the desired unrestricted "concession for the pursuit of a trade" in the city braunschweig. in 1864, peter voigtländer was honoured by emperor franz joseph i of austria with the knight's cross of the order of franz joseph; becoming known as peter wilhelm friedrich ritter von voigtländer. on the death of voigtländer's vienna works manager, the vienna business was closed in 1868. voigtländer braunschweig changed status to a public "aktiengesellschaft" (voigtländer & sohn ag) in 1898. in 1923 a majority of the shares (99.7%) were acquired by schering ag's photo division and large-scale production then took place in 1925.
voigtländer