Complex sentence: This indicates their population was in decline after 12,500 BP and the single wolf dated at 7,600 BP is in accord with evidence of a remaining pocket of residual megafauna that still inhabited North America around this time.
Split into simpler sentences: This indicates their population was in decline after 12,500 BP. The single wolf dated at 7,600 BP is supported by evidence of a remaining pocket of residual megafauna that still inhabited North America around this time.