Did you know that there are over 3,000 different species of centipedes, and scientists believe that there could be 5,000+ ...

Around 400 million years ago, Earth’s oceans were dominated by massive sea scorpions. Scorpions, as we know them today, are ...

For over a century, the Cambrian arthropod Helmetia expansa remained a mystery. Discovered by paleontologist Charles Doolittle Walcott in 1918, it was initially classified as a crustacean. Despite ...

Did you know that there are over 3,000 different species of centipedes, and scientists believe that there could be 5,000+ ...

They’re also one of the world’s largest arthropods, animals with no backbone, external skeletons, and multiple-jointed appendages. In this crab’s case, those appendages are its 10 legs.

Researchers formally describe Helmetia expansa, offering new insights into its anatomy, behavior and evolutionary relationships.