What does the pup detect?

I assumed it was picking up the Engineer that was in the suspended animation bed inside the room? Maybe the Engineer wasn't motionless in his sleep & thats what it was picking up.

It's at the door of the ship's bridge. Inside is a space jockey in stasis. Janek says that it picks up a signal for a few seconds every couple of hours. That may be simply due to the slowing down of the metabolism in stasis. Notice that at times there is a light in the stasis pod that comes on for a short while and then goes.

was the Engineer's bed located near the pile of dead Engineers? The two guys turned around after seeing the pile and finding out that there is movement ahead in the tunnel.

Janek said it detected "life signs" not necessarily "movement". When asked if it was moving he said "no". These are not the motion trackers that Hudson had.

Well didn't Janek say it was "one click west" of their position? So they went east, cos they didn't want to check it out.

Hadley has the answer...the engineer.

I wonder why the pups pick up the engineer who has feeble vital signals coming from inside a coffin and well behind a thick door, while they don't pick up the worms when hovering right above them. Putting aside monocellular organisms, If you want to detect a multicellular organism, a bug or a whale would have the same importance in terms of scientific breakthrough (or simple quarantine protocols).

NoXWord... I don't recall the pups being inside the "temple" chamber. And we only saw the worms inside, not outside that door. Are you asserting that the worms were outside the door and brought in with the humans, rather than lying dormant (as was everything else) inside the room for 2000 years. The worms seem to come UP from the gravel into a foot print, attracted by the footsteps. They don't remind me of the way a worm would riggle if it had been stuck to a boot. (the ground is dry by the way, and the worms and boots also look dry, so why would they stick to the boot?)