The Jurassic fossil Juracanthocephalus reveals a key evolutionary link between rotifers and parasitic acanthocephalans, ...

A research team from the Nanjing Institute of Geology and Palaeontology of the Chinese Academy of Sciences has identified a ...

The worms unfurl this proboscis to reveal a set of jaws almost 3 inches (7 cm) wide complete with large, sharp teeth, according to Australian Geographic. We don't know exactly what they eat ...

A fossil acanthocephalan, Juracanthocephalus, from the 160-million-year-old Daohugou Biota in North China's Inner Mongolia ...

Acanthocephalans are characterized by their worm-like body shape and a retractable proboscis armed with rows of recurved (i.e., backward-facing) hooks for anchoring to the digestive tracts of ...