This video compares the suckers on squid arms and octopus arms, by looking at them up close. Unlike octopus suckers, we can see that squid suckers have hooks and serrated teeth on them. The video discusses the following information:

Squid vs Octopus
Octopus suckers up close
Hooks and teeth on squid suckers

Specimen use made possible by the University of Michigan Museum of Zoology

#shorts