The rare creature has only been spotted roughly 100 times since its discovery in 1899.
Researchers discovered the fossils of two previously unknown armored marine worms named Excalibur and Shuriken.
Archaeologists in Russia have unearthed a Scythian-crafted silver plate depicting a fertility goddess.
A newly identified species of ichthyosaur had big teeth to attack large prey, possibly including other marine reptiles.