Tube World Scene: Entrance to the Caves

Word to the wise, there's a trick to descending into the caves on the tube world.

Tube World Scene: Underground Cave

The underground caves on the tube world have bizarre properties.

Animallum: Earth Animals (Troglobytes)

More animals!  This group-o-four's defining characteristic is their propensity for cave dwelling.  From left to right:

1.  Orthriophis taeniurus ridleyi
2.  Eurycea rathbuni
3.  Satan eurystomus
4.  Cambarus zophonastes