Snake digestive system vs human digestive system: Key structural differences Snakes and humans share a mouth, oesophagus, stomach, and intestines, but that’s where similarity ends.

He would need an artificial digestive system to do so, per co-authors Falk J. Tauber (University of Freiberg) and Barry W. Fitzgerald (Eindhoven University of Technology).

The sea cucumber has escaped being eaten, but now it has a new problem. Surely, without a digestive system, it can’t eat anything? Think again. This animal can eat through its anus. Mop of ...