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Reproductive tract of a male macropod. Most male marsupials, except for macropods [19] and marsupial moles, [20] have a bifurcated penis, separated into two columns, so that the penis has two ends corresponding to the females' two vaginas. [7] [17] [21] [22] [8] [23] [24] The penis is used only during copulation, and is separate from the ...
The word kangaroo derives from the Guugu Yimithirr word gangurru, referring to eastern grey kangaroos. [14] [15] The name was first recorded as "kanguru" on 12 July 1770 in an entry in the diary of Sir Joseph Banks; this occurred at the site of modern Cooktown, on the banks of the Endeavour River, where HMS Endeavour under the command of Lieutenant James Cook was beached for almost seven weeks ...
It is also known as the great grey kangaroo and the forester kangaroo. Although a big eastern grey male can typically weigh up to 69 kg (152 lb) and have a length of well over 2 m (6 ft 7 in), [ 4 ] the scientific name, Macropus giganteus (gigantic large-foot), is misleading: the red kangaroo of the semi-arid inland is larger, weighing up to 90 ...
There is another benefit for a male kangaroo to have impressive biceps and a muscular chest. It impresses the females. Scientists have learned that female kangaroos are attracted to male kangaroos ...
The western grey kangaroo (Macropus fuliginosus), also referred to as a western grey giant kangaroo, black-faced kangaroo, mallee kangaroo, sooty kangaroo and (when referring to the Kangaroo Island subspecies) Kangaroo Island grey kangaroo, [4] is a large and very common kangaroo found across almost the entire southern part of Australia, from just south of Shark Bay through coastal Western ...
The red kangaroo (Osphranter rufus [5]) is the largest of all kangaroos, the largest terrestrial mammal native to Australia, and the largest extant marsupial. It is found across mainland Australia , except for the more fertile areas, such as southern Western Australia , the eastern and southeastern coasts, and the rainforests along the northern ...
Baculum of a dog's penis; the arrow shows the urethral sulcus, which is the groove in which the urethra lies. Fossil baculum of a bear from the Miocene. The baculum (pl.: bacula), also known as the penis bone, penile bone, os penis, os genitale, [1] or os priapi, [2] is a bone in the penis of many placental mammals.
Many species of male marsupials have a naturally bifurcated penis, with left and right prongs that they insert into multiple vaginal canals simultaneously. [3]