字幕列表 影片播放 列印英文字幕 Smart Learning for All Why do dogs lick their wounds? Dogs including animals like cats, chimpanzees, rodents etc. don't have access to a proper medical treatment. Hence, a little licking helps to heal and clean the wound. What? But how? When dogs lick, they apply saliva on their wounds. This saliva has antiviral and antibacterial compounds like an enzyme called lysozyme. Lysozyme destroys cell walls of certain bacteria and helps kill them, thus preventing infection. The saliva also contains a protein called tissue factor which promotes blood clotting and thus, stops bleeding. Besides this, licking also removes dirt from the wound. So, dogs should always lick their wounds. No. Excess licking is not beneficial. This is because a dog's saliva can also contain harmful pathogens. They could aggravate the wound and make it more painful. Hence, now a days, dogs are made to wear an Elizabethan collar to prevent them from licking. For more educational videos, please download 'Smart Learning For All' Android App from Google Play Store. Also, don't forget to subscribe to our YouTube channel.
B2 中高級 美國腔 狗為什麼要舔傷口?| 舔傷口 (Why do dogs lick their wounds? | #aumsum) 35 1 AumSum 發佈於 2021 年 01 月 14 日 更多分享 分享 收藏 回報 影片單字