Ask Dr. Universe: Worms' mouths are adapted to what they eat - Mon, 13 Apr 2026 PST

AI Briefing

• – Worms do not have mouths in the classical sense, they have a pharynx that leads to a digestive cavity.
• – The pharynx is used to ingest food and liquids, but it is not a mouth.
• – Worms, such as earthworms, have evolved to eat soil and decaying organic matter through a process called pseudotracheae, which is a system of tiny tubes that bring oxygen and nutrients to their cells.