The teeth of Baryonyx are very sharp and pointed, but they're actually quite round and they have a fluted pattern along one side.

重爪龙牙齿尖锐锋利，但实际上这些牙齿有弧度，一侧内。

Also, the inner lining of the stomach has millions of tiny gastric pits that dive down to gastric glands.

另，内表面有无数密集分布小，腺即开口于小底部。

And innies are ripe for colonization, not only by lint, hair, and dead skin cells, but also by bacteria.

而内肚脐非常适合各种物质聚集，不仅有棉绒、毛发和死皮细胞，还有细菌。

Raptors have an especially deep fovea— a depression in the back of their eye that fits more photoreceptors.

猛禽有一个特别深中央— —它们眼睛后部陷处适合更多光感受器。