caudal

It has a caudal synarcual, or a specialized adaptation of the ray’s skeletal near the back, which keeps the tail stiff and thereby minimizes the sound of water as it goes about sensing its surroundings.

The scientists found that giving this molecule to mice activated the caudal nucleus of the solitary tract, or cNST, which is tucked inside the brainstem.

"Additionally, developmental changes suggest that vertebral anatomy shifts across development to support a larger body and caudal fin."

"They work in tandem to utilize the reverse-Kármán vortex street and adjust their caudal fins accordingly."

They swam by my mom like a fleet of small ships moving through the wreck, their sandy-brown skin gliding past her, caudal fins rippling like fabric through the water.