What animal lives in large colonies known as warrens?

Rabbit

What is the name of the three-headed dog guarding the gates of the Underworld? What city did Saul persecute Christians from before his conversion? What was the capital of Ancient Egypt under Akhenaten? Which NFL wide receiver was nicknamed 'Megatron'? Who founded the Bank of America originally known as the Bank of Italy in the early 20th century?