You mean it lives on blood.
4 seconds sound clip from the The Thing from Another World movie soundboard.
You can hear this line at 00:48:42 in the Blu-ray version of the movie.
Quote context
[...]
- At 12:10 A.M., the hand became alive.
- The temperature of the forearm showed a 20-degree rise.
- It's the best we could find, Pat.
- If it doesn't work, I don't know what will.
- Where are you going, captain?
- To find our visitor if we can.
[...]