You might have a question just like other people think about  do penguins have knees. The quick answer to this question is yes they do.  Regarding bird knees, there is a widespread misunderstanding among people. A bird's heel is what seems to be a knee. 
 
 Birds have an elevated heel, which helps them land and take off, unlike humans and other mammals that have flat soles. However, penguins have a flat sole that makes walking easier for them.  They are invisible because they are hidden by the feathers. 
 
 Birds' knees are constantly bent at a right angle to the ground, according to X-ray examinations. Therefore, unlike people who stand straight, birds must slightly bend forward. The knees of penguins are also tucked inside their bodies. They vary from most birds in that they don't have a bent spinal cord. Their posture is more upright as a result of their more erect spine.
 
 Visit : https://www.benchmarkmonitor.com/2021/09/16/do-penguins-have-knees/
トップ   編集 差分 バックアップ 添付 複製 名前変更 リロード   新規 一覧 単語検索 最終更新   ヘルプ   最終更新のRSS