中文内容为资料集译写。每条说明所依据的摘要或正文范围。 / Chinese text is prepared for this collection. Summary evidence is identified for each entry.
Nature全文 PDF一种鲨鱼如何使用其锯状颌部
How a shark used its saw-like jaw
Nature · 2014
依据已查看的本地出版物正文片段概括。
Summary based on the inspected sections of the downloaded publication.
Nature 关于旋齿鲨颌部功能的研究亮点短文，并非其所介绍的完整研究论文。
Nature research highlight on Helicoprion jaw function; not the underlying full research paper.
主要发现 Key findings
该研究亮点介绍旋齿鲨颌部重建：前方较老牙齿用于钩住猎物，深部较强的新牙完成切割，低磨损支持软体猎物食性。
This highlight reports a Helicoprion jaw reconstruction in which older anterior teeth snagged prey and stronger inner teeth completed processing; low tooth damage supports soft-bodied prey.
结论 Conclusions
其齿旋并不必然用于切开硬壳，所述证据更支持头足类等软体猎物；本条为研究报道。
A saw-like tooth whorl need not imply hard-shell feeding; the reported evidence favours soft-bodied prey, and this item is a research report rather than the underlying study.