It depends what theory you wish to believe. Darwin suggests that our appendix is a by product of when we were herbivorous primates and it aided our digestion of vegetable matter. If this the case then rodents would have a larger appendix in order to digest their herbivorous diet.
The second theory would be that the appendix houses bacteria designed to fit gut infections so, if this is the case then perhaps rodents need greater concentrations of these bacteria due to the conditions with which they live.
Not sure how useful this info is after all I'm only a bar tender!
Cats do not have appendix and humans do.
The appendix.
The appendix in cows is an organ that has no known function in their digestive system. It is believed to be a vestigial structure, similar to the appendix in humans, which may have had a role in digestion in ancestral species but is no longer necessary.
Humans
The appendix is found in higher apes, wombats, opossums, rabbits, some rodents, and a few lower mammals. So, no.
In humans the appendix is a vestigal organ and has no function that we are currently aware of.
destroy bacteria
Some examples of vestigial structures in humans include the appendix, coccyx (tailbone), and ear muscles that are no longer used for movement. These structures are remnants of ancestral features that have lost their original function over time through evolution.
The Appendix is a place an extra supply of them is stored. (Without an appendix, you would eventually get a new supply from other people you meet, but this probably took longer when there were fewer humans in the world.)
When the appendix (a blind-ended tube connected to the cecum) becomes inflamed, unless treated or surgically removed, the resulting infection can cause death. In humans, the appendix is as small as your little finger, and is no longer needed.
vestigial organs like the appendix which is vestigial in man
yes No. In pigs, the cecum has a pouch that holds bacteria that aid in digestion. It is an active part of the digestive system. In humans, it has evolved into a vestigial appendix.