Memory Possessive Nouns - Sing & PlurVersión en línea Learn and revise the difference between plural and singular nouns with regard to possessive nouns. por Pauline Borg the hedgehogs' spikes the spikes of the hedgehogs the fur of the bear the bears' fur the fox's whiskers the squirrels' tails the whiskers of the foxes the eyes of the owls the woodpecker's beak the owl's eyes the red deer's antlers the tails of the squirrels the bear's fur the beak of the woodpecker the antlers of the red deer the whiskers of the fox the eyes of the owl the foxes' whiskers the owls' eyes the fur of the bears