CRAB (With its counterpart)

One striking feature about the fossil record is that, living beings have undergone no changes during all the geological periods. In other words, for tens of millions, and even hundreds of millions of years, creatures have remained just as they initially appeared in the fossil records. This is evidence that then and now, living beings have not evolved. Crabs that have remained unchanged for 50 million years are among these proofs. Crabs that live today and those of millions of years ago are identical.