what are the differences between a male and female rib cage?
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The volume of the rib cage is about 10% smaller in females than in males having the same height although the reason for this is presently unclear. The cranio-caudal inclination of ribs is greater in females than males but the length of ribs has not previously been compared between the sexes.
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Females naturally have wider-set hip bones that allow for the accommodation of eggs, while males are more narrow. While males are generally not as wide as their female counterparts, sometimes their hips widen as they age, so this is not an accurate method in sexing your parrot.
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Bra size has two measurements; the band (rib cage) and the cup (bust). Cup size does not represent breast size but instead represents the difference between the rib cage and the bust.
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Unlike many birds, both sexes of osprey are similar in appearance. However, the female is larger- up to 20% bigger and a heftier bird. The females also often have more brown colouring on their chest than the males, a so-called 'necklace'.
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As Figures 1 and 2 show, both male and female chickens have these basic parts. The differences between males and females include the size of the comb and wattles, the size of the spurs (in older birds), and the characteristics of the hackle and cape feathers.
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Adult female humpback whales are typically 1–1.5 m longer than males. ... There are no easily observable differences between male and female humpbacks. Females possess a grapefruit-sized lobe at the rear of the genital slit; this lobe is absent in males.
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The anus on a male is circular while the anus of a female resembles a keyhole, and the female's will become larger once it is time for her to lay eggs. Examine the weight of your walleye. A male will weigh less and look slimmer than a female, with a more streamlined appearance; female walleyes are rounder and plump.
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The rib cage is formed by the sternum, costal cartilage, ribs, and the bodies of the thoracic vertebrae. The rib cage protects the organs in the thoracic cavity, assists in respiration, and provides support for the upper extremities.
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Both have two holes. One is the anus and the other is the reproductive organ. In males, the sexual organ forms a small spike. In females, the organ is wider and more blunt because it is the tube where the eggs are released.
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Your ribs essentially serve two main purposes: They protect your heart, lungs, and other organs and tissues in your upper body. They also provide some protection for your liver and kidneys. They provide structure and support to the bones and muscles in your chest, shoulders, and back.
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Men, women, and anatomy. Most people have 24 ribs, with 12 on each side of the body. The ribs and rib cage are excellent examples of the human body's multi-faceted and multi-functional design.
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There are some visible differences in body composition between male and female tigers, though they can be difficult to spot. Male tigers tend to have slightly longer tails relative to their body size than females. ... Males also have larger front paws relative to their body size.
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The male is larger than the female, his beak is longer, less arched, with longer terminal hook. The female, also, has a broader beak, has green underwing-coverts (whereas the male has black); her beak is less bright in colour, and her face and rump paler.
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Vent of an adult male crocodile. Compared with the female vent, it is larger and more convex. ... Male and female crocodilians can be hard to tell apart visually. Usually, the best indication is size - males grow larger than females in all crocodilian species, and so a very large individual is more likely to be a male.
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There are several diagnostic criteria for differentiating a male from a female pelvis: The female pelvis is larger and broader than the male pelvis, which is taller (owing to a higher iliac crest), narrower, and more compact. The distance between the ischium bones is small in males.
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The differences between males and females include the size of the comb and wattles, the size of the spurs (in older birds), and the characteristics of the hackle and cape feathers. Hackle and cape feathers of males have pointed ends, whereas those of females have rounded ends.
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Females lack the mask, and their brown or greenish-brown plumage is less distinctive. Both males and females have thick orange bills, but those of the male tend to have some black coloration. Both males and females have triangular crests, and the male is about an inch (2 centimeters) larger than the female.