Holy wormsign, Batman

Sinkhole

Aerial view of the huge hole caused after a collapse in the sewage system in the neighbourhood of San Antonio, north of Guatemala city, 23 February 2007.

A 330-foot-deep sinkhole killed two teenage siblings when it swallowed about a dozen homes early Friday and forced the evacuation of nearly 1,000 people in a crowded Guatemala City neighborhood.

Edward Ramirez said he and other residents had been hearing noises and feeling tremors for about a month before the ground opened up before dawn, waking many in the poor neighborhood.

Sandworms begin their life as simple creatures known as sandtrout, or "Little Makers" to the Fremen. The sandworm begins the adult stage of its life at only about a meter long, rarely surfacing before reaching two meters, but their final size, as indicated above, can be several hundred meters.

A joke among imperial ecologists goes:

Question: What do the sandworms of Dune eat?
Answer: Humans.