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单词 Carnassial teeth
释义

Carnassial teeth

原声例句
PBS地球-动物趣闻

The rest of its dentition was made to shear through flesh, too, like specialized premolars that resembled bolt cutters – kinda like the extreme version of the scissor-like carnassial teeth of carnivorans.

它的其余齿列也被用来剪断肉,就像专门的前臼齿, 类似于断线钳——有点像食肉动物剪刀状的食肉牙齿的极端版本​​。

PBS地球-动物趣闻

They were about half the size of a modern lion, but relative to body size they have the largest meat-slicing carnassial teeth known and a stronger bite force than any other mammalian carnivore.

它们的体型大约是现代狮子的一半,但相对于体型而言, 它们拥有已知最大的切肉肉食牙齿, 并且咬合力比任何其他哺乳动物食肉动物都要强。

英语百科

Carnassial

Carnassials of a dog
Left: Carnassial teeth of [A] bear (Ursus), [B] leopard (Panthera), [C] dog (Canis), [D] badger (Meles), and their respective close ups.Right: Carnassial teeth of [E] otter (Lutra), [F] raccoon (Procyon), [G] mongoose (Herpestes), [H] weasel (Mustela), and their respective close-ups.Photos taken at Imperial College London.
Comparison of carnassial teeth of wolf and typical hyaenodontid and oxyaenid

Carnassials are paired upper and lower teeth (either molars or premolars and molars) modified in such a way as to allow enlarged and often self-sharpening edges to pass by each other in a shearing manner. The modification arose separately in several groups of carnivorous mammals. Different pairs of teeth were involved in the separate modifications. In modern Carnivora, the carnassials are the modified fourth upper premolar and the first lower molar. These teeth are also referred to as sectorial teeth.

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更新时间:2025/6/20 15:18:02