Palaeocampa anthrax, a fossil worm first described from Carboniferous rocks in 1865 as a caterpillar, is redescribed as a freshwater aysheaiid lobopodian with a unique sclerite armature and probable c...

Alt: Living velvet worm spraying a sticky liquid used to trap prey and deter predators.

In a twist worthy of a detective novel, a long-misidentified fossil at Harvard's Museum of Comparative Zoology (MCZ) has emerged as a key discovery in early animal evolution.