Yes, but almost always off-screen. Any creatures that die on-screen are actively engaged in combat as combatants, not innocent or incidental casualties.
Many enemies are animalistic in some way, and many creatures die and/or leave corpses to be found.
This is almost always a result of the creatures involved being active threats to others.
A group of crawlers decide to stay on the first floor and get crushed to death when the stairwell to the second floor closes and the top level collapses. It is not described, and is off page.