The animal with the largest appendix is the coelacanth.
This ancient fish, thought to be extinct for millions of years until its rediscovery in 1938, has a surprisingly large appendix that is about 10 times the size of its intestines.
While the exact function of the coelacanth's appendix remains a mystery, scientists believe it may play a role in immune system function or digestion.
In contrast, the appendix in humans is a small, finger-shaped pouch that extends from the colon. It is often described as a vestigial organ, meaning it has lost its original function over time. However, recent research suggests that the human appendix may play a role in housing beneficial bacteria and helping to restore gut flora after illness.
