In Passage 1, the author discusses the impact of climate change on polar bears, emphasizing the loss of sea ice habitat and the subsequent challenges in hunting for food. The author suggests that these factors have led to a decline in polar bear populations.
Passage 2, on the other hand, focuses on the adaptive behaviors of polar bears in response to changing environments. The author highlights instances where polar bears have learned to hunt seals in more diverse locations, showcasing their resilience in the face of environmental challenges.