Homologous trait Octopi and squid tentacles Divergent evolution has the squid with two extra tentacles used for capturing prey Cephelapod Octopi and jellyfish have homologous traits. Octopi are cepholopods that have, on average, 8 tentacles used to grab their prey and drag it toward themselves. Jellyfish are slightly different in the way that they do not have a skeletal form and have an umbra shaped bell at the top of their bodies. Both have tentacles but the octopus has an average of 8 while the jellyfish can have millions of tentacles depending on what kind. Each are used for food capture, but the Jellyfish uses these tentacles to inject toxins in its prey while the octopus normally uses it to crush its prey for consumption. These are different for the different ways of mobility as well as the different kinds of prey that each feast upon. While Octopi can sometimes chase their prey, which may be fast or even bigger than them, Jellyfish have slower mobility rates and need...