RADULA movement in prosobranchiate gastropods is a factor in the predator-prey relationship of many species of gastropods (Naticidæ, Muricidæ and others) and other molluscs, involving ...

Uno is a giant Pacific octopus, and visitors to his exhibit can sometimes see this feeding in person ... food into its mouth using its tongue-like radula. In this video, we see Uno doing something ...

These nudibranchs have a rough, tongue-like feeding structure called a radula. They use this to scrape their food from the surface it is sticking to. However, the lion’s mane nudibranch does this ...