Meet the Accordion Worm—A Shape-Shifting Marine Predator Hidden for Centuries
A previously unknown species of ribbon worm, Pararosa vigarae, has been discovered off the northwest coast of Spain. The marine worm, nicknamed the accordion worm, can shrink to one-fifth of its size when alarmed, forming distinct ring-like folds along its body. Scientists believe this unique contraction ability may serve as a defensive mechanism or aid ...
