The author uses factual evidence to develop the argument. The statement provides specific information about wolf packs, including the size, age of pups when they can play, the structure of leadership within the pack, and the average number of pups in a litter. This type of evidence is concrete and based on observable data, which strengthens the argument by grounding it in facts rather than opinions or anecdotes.
Which type of evidence does the author use to develop an argument?
A wolf pack may have as many as twenty wolves. By three weeks of age, wolf pups are able to play. Most packs are led by an adult male and adult female. The average size of a wolf litter is around four pups.
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