Are there spikes on a sucker fish?

Suckerfish, also known as remoras, do not have spikes. They have a sucker disc on their heads that they use to attach themselves to larger animals, like sharks, whales, and turtles.

The sucker disc is covered in lamellae, which are small, flap-like structures that create a suction force when the remora presses its head against a surface.

Let me know if you have any other questions!