transitional form

基本解釋

I asked White whether Ardi's transitional form might justify calling Ar. ramidus a "missing link."
我問懷特阿迪的過渡形態(tài)是否意味著地猿始祖種就是所謂的“缺失的一環(huán)”？
The consensus had been that habilis was a transitional form between Australopithecus and Homo erectus.
人們一致認(rèn)為“能人”是南方古猿和直立人之間的過渡物種。
To know which scenario was correct, the researchers needed to find a transitional form — with characteristics that fall somewhere between bottom-dwellers and the permanently 'rafting' janthinids.
為了研究出哪種猜想是正確的，研究人員需要找到過渡類型，既有底棲蝸牛的特性也有漂浮泡泡蝸牛的特征。