探花
1月24日上昼，成皆大熊猫繁育扣问基地微信公众号发布一条视频，视频中谭爷爷对着“花花”“和叶”喊“两姐妹”。这让网友战栗不已：往日的和叶弟弟简直形成了妹妹？
On the morning of January 24th， the Chengdu Panda Breeding Research Base's WeChat official account released a video. In the video， Grandpa Tan addresses "Hua Hua" and "He Ye" as "two sisters". This has left netizens in shock: the former brother， He Ye， has turned into a sister?
谭爷爷讲授说念，“和叶”刚出身时，性别特征偏向于弟弟，包括排尿高、个子大、性情清明等。但跟着“和叶”缓缓长大探花，雄性特征就不赫然了，于是请了群众集合生物样本，查出来如实是“妹妹”。
Grandpa Tan explains that when He Ye was just born， the characteristics leaned towards being a brother， including higher urination， larger size， and lively personality. However， as He Ye grew， the masculine features became less evident. Experts were consulted， and through biological sample analysis， it was confirmed that He Ye is indeed a female.
为什么会出现大熊猫性别乌龙？在庞大大型哺乳动物中，大熊猫是最难分辨牝牡的。罕有兽种一般不给与性染色体鉴识法，频频皆所以第二性征或外露的牝牡生殖器官步地的各异来识别性别，这种步伐荒谬准确。偏巧大熊猫是个例外，它的幼兽外露的两性生殖器的步地着实难以分辨。
Why does the giant panda's gender become a puzzle? Among many large mammals， giant pandas are the most challenging to distinguish between male and female. Rare species usually don't use chromosomal sex determination; instead， they rely on secondary sexual characteristics or external differences in reproductive organ morphology to identify gender， which is highly accurate. However， giant pandas are an exception. The morphology of their external reproductive organs in cubs is difficult to distinguish.
因此，唯有成年熊猫智商从外生殖器差异性别，但还得仔细不雅察才行，这是与其他动物不同的。
伦理片在线伦理片观看Therefore， only adult pandas can be differentiated by external genitalia， requiring careful observation， making them different from other animals.
责编：勾晓庆探花