The tadpole shrimp, commonly called a living fossil, is actually much younger than once believed, according to a report published in the journal PeerJ. The title "living fossil" is given to animals that researchers believe have not evolved significantly over millions of years. Genetic analysis of the tadpole shrimp, however, indicates that the shrimp evolved much more recently than a species of ancient crustaceans that look similar to them.

Full Story:

Related Summaries