日本锯鲨 / Japanese sawshark

My sensory snout is a built-in snack detector—your nose has some serious competition!
我的感官长吻像自带的零食探测器——你的鼻子遇到劲敌啦！

Sources
X-ray computed tomography library of shark anatomy and lower jaw surface models
https://www.nature.com/articles/sdata201747
Species reference
https://en.wikipedia.org/wiki/Japanese_sawshark

Research context
The sawshark's elongated sensory snout shows how vertebrate heads can specialize for prey detection and capture. It illustrates a separate adaptive experiment within jawed fishes.