Shows that over time organs that are not needed or not used that a species can live without begin to appear in offspring. ex) some humans are born without their wisdom teeth
Whales and some other cetaceans have unusable leg bones as a vestigal structure.
Vestigal organ
Are called vestigial organs and there are several very nice examples on both sides of the 'Gender Fence'.
short
vestigal organ
DSB
The vestigal feature of a kiwi is it's wings.
In humans the appendix is a vestigal organ and has no function that we are currently aware of.
vestigal
yes, they have 2 pairs, one is a vestigal structure, the other is used for sensory functions :)
Vestigal Structures.