Paleontologist observed changes in the size s of black bears as their environment changed

Answer 1

over time. The paleontologist noticed that as the climate became colder and food sources became scarcer, the black bears in that region began to grow larger in size. This was likely an adaptation to help them survive in the harsher conditions and be able to hunt larger prey.

The paleontologist also observed that as the climate began to warm again and food sources became plentiful, the black bears in that region started to decrease in size. This was likely because they no longer needed to be as large to survive and compete for food.

Overall, these observations support the theory of natural selection, where organisms that are better adapted to their environment are more likely to survive and reproduce, passing on their advantageous traits to future generations. In this case, the size of the black bears changed in response to changes in their environment, allowing them to better adapt and thrive in different conditions.