What do the swans symbolize in “the wild swans at coole”?

 The swans are a symbol of beauty, but also of energy and permanence. They don't seem to age the way the speaker does, and they aren't conscious of pain and weariness in the way that the speaker is. Although the swans impress the speaker greatly, they also remind him of the pains of getting old and the inevitability of death.

new york state wildlife expert richard thomas found that a woodchuck could   chuck around 35 feet of dirt in the course of digging a burrow. thomas reasoned that if a woodchuck could chuck wood, he would chuck an amount equivalent to the weight of the dirt, or 700 pounds.

yes

explanation: