An Octopus Can Explore The Seafloor By Taste And Touch
An octopus does not need to bring every object to its mouth to investigate it. Its suckers can detect both physical contact and certain chemicals on a surface. This combined ability is often described as tasting by touch. The comparison is useful, but an octopus does not taste exactly as humans do. Specialized sensory cells help it examine rocks, shells, hiding places, and possible prey while its arms move across the seafloor.