No.47 hammerhead shark

The hammerhead shark is a species of shark that migrates between temperate and tropical seas, ranging in length from about 1 meter to as large as 4 meters.
Its distinctive head, which protrudes widely to the left and right, is called a “head fin” and is covered with a wide range of sensors, including visual, olfactory, and electrical sensors.
This allows it to accurately detect the location and movement of its prey.

This sample was requested by NHK Enterprises, Inc. and CT scans were conducted as a project for NHK E-television's “Gyogyotto Sakana★Star”.
Gyogyotto Sakana★Star" program HP: https://www.nhk.jp/p/ts/P58QMGP4K1/

CT scans revealed complex neural structures and cavities inside the head fin.
The flexible spine extending from the head to the tip of the tail is an important structure that supports propulsion when swimming. The cartilaginous skeleton is complex in shape yet lightweight, and was observed to efficiently protect the nerves and internal organs.