The japanese spider crab is the biggest arthropod on earth -- their legs are believed to grow up to 12 feet long .
日本的蟹型蜘蛛是地球上最大的节肢动物，它们的腿被认为能够长到12英尺长。
For now , the results can help scientists determine additional factors that influence biodiversity and develop models of the impact of habitat loss on arthropod diversity and abundance , basset says .
