Sharks That… Walk?

When most people think of sharks, they imagine strong, powerful swimmers cutting through the open ocean. Sharks such as Great whites and Tiger sharks certainly fit that description. However living in the coral reefs of the Indo-Pacific region is a species of shark that completely flips that expectation, the White-spotted bamboo shark.

Photograph by author: taken at the Staten Island Zoo, White-spotted bamboo shark resting in exhibit

The White-spotted bamboo shark (Chilosyllium plagiosun), is also known as the walking shark. As its nickname suggests, this species is different than other shark species because instead of swimming, they walk. But how does a shark “walk”, they don’t have feet. The White-spotted bamboo shark has adapted to move along the ocean floor using its fins to push itself forward in a walking-like motion. One fin pushes forward while the other stabilizes the body, creating a slow, stepping motion along the seafloor. This movement is not a true “walk” like a land animal, but it closely resembles crawling.

Their form of movement is especially effective in the habitat they live in. White-spotted bamboo sharks are measured to be about 3-5 feet in length and live in shallow coral reefs in the Indo-Pacific region. This includes the Indian and Pacific ocean and countries such as Indonesia and the Philippines. Living in shallow waters means that space is limited. By moving along the bottom, they can slip into narrow crevices, being able to navigate and thrive in complex coral structures, and quietly approach small prey without needing open water speed.

Photograph by author: Taken at the Staten Island Zoo, bamboo shark coming up to eat (tongs are holding shrimp)

White-spotted bamboo sharks are carnivorous, with their diet consisting of small fish, crustaceans, and other bottom-dwelling organisms. Their slow, walking movement allows them to search the seafloor with precision, looking through the cracks and crevices where their small prey could be hiding. Instead of chasing fast-moving animals, they carefully move through their habitat, using their specialized form of movement to find food where other sharks could never reach.

The White-spotted bamboo shark is a true reminder to never judge a book by its cover. While sharks are seen as the ocean’s biggest symbol of speed and power, this species shows a meticulous, quiet side of survival. Its movement is not about speed, power, or dominance of the ocean, but about an adaptation to a specific way of life. By expecting the unexpected, this species of shark shows us how diverse and specialized life in the ocean can be.

10 hours ago