I had a post on here a few weeks ago about a surprise litter of 3 gerbils well i kept the girl from that litter with mum as mum was due to give birth again she now has 6 3 week old babies and the girl (Luna ) from the older litter is 8 weeks old and i went in to check on the this morning and a small chunk of her tail has been bitten off ? down to the bone. i have removed Luna from her mum and the other babies and cleaned the wound up. what advice can people give me. please no nasty comments i did not know this was to happen and i love my gerbils so much.