Peking Man, also known as Homo erectus pekinensis, is indeed believed to be older than previously thought. Recent studies have revealed that the presence of Peking Man in China may date back to approximately 780,000 years ago, suggesting that the species lived during the Middle Pleistocene epoch.

Scientists speculate that Peking Man may have exhibited adaptations to the colder climates of the time. These adaptations could have included physiological traits, such as a thicker layer of body fat or changes in metabolic processes, which allowed them to survive in the colder conditions of the Middle Pleistocene. Additionally, behavioral adaptations, such as living in cave shelters or using fire for warmth and cooking, could have also contributed to their survival in colder environments.

It's important to note that the exact mechanisms and extent of these adaptations are still subjects of ongoing research and debate among scientists. Further studies and analyses are necessary to fully understand how Peking Man coped with the cold climate during their time.