Hi all, Sorry for the long email, wanted to give full context before asking. We've had three separate BALB/c dams eat their litters within 24-48 hrs of birth over the past two weeks.

Two things fixed it for us: 1) Switched from standard cotton nestlets to the compressed cotton nestlets PLUS a red plastic dome/hut in the cage before the female was due. Give the red dome + minimal handling a shot, it's a pretty low-effort fix.