I haven't made a pig trap in some time, so unless I've missed something in the minecraft 1.0 or 1.1 patch notes, does the server have some sort of plugin that prevents pigs from dying from falling, burning, and drowning?

Because I placed some spawners near water leading down a large hole so that I would have a source of pork, and everytime the pigs fell down and died, instead of dying and dropping pork, they instantly showed back at the top again.

Same with fire, soon as they touched the fire they moved back to where they were 3 seconds ago, unhurt.

No problem at all. try again.....

Most likely lag.