Chelicerata (IMAGE) University of Wisconsin-Madison Caption University of Wisconsin-Madison Professor of Integrative Biology, Prashant Sharma, shows off a preserved sea spider recovered from the deep sea in Antarctica. While not true spiders, they belong to a *sub*phylum of animals called Chelicerata and are a close relative of spiders and scorpions. Sharma studies the evolution of arthropods and arachnids. Credit Kelly April Tyrrell, University of Wisconsin-Madison Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.