Thanks to Keeps for sponsoring this video! Head to <a href=" to get 50% off your first Keeps order.It’s a Paleozoic party! We ...

Learn more about the time period that took place 488 to 443 million years ago. 3 min read During the Ordovician period, part of the Paleozoic era, a rich variety of marine life flourished in the ...

Here are a few things we found out about the hidden world we pass by every day on The Nature of Things documentary The ... In the Late Ordovician era, they formed a symbiotic relationship with ...