Guillemot Eggs Have Evolved to Not Roll Off Cliffs The Guillemot (a seabird) roosts on steep sea cliffs, and their eggs have evolved in a way that makes them unable to roll away from the nest. Give the gift of kindness this holiday season by donating to our Giving Tuesday fundraiser to help homeless pets and animals in need! It's time to pay your cat tax! Add to Preferred Sources Comments via Head Like An Orange Tags birds cool egg gifs spin Like Show Comments Hide Comments