How Cute! Trilobites Curled Up in Self-Defense

One of the earliest examples of trilobites, tiny crustaceans that emerged during the Cambrian Period, curled up like pill bugs in self-defense, new fossil finds reveal. The findings suggest this self-defense mechanism evolved earlier than thought.



via LiveScience.com http://www.livescience.com/39920-trilobites-curled-like-pill-bugs.html