According to the textbooks, these two species aren’t supposed to inhabit the same environments. Polar bears are marine mammals; Grizzlies are terrestrial. But as the Arctic warms, sea ice is shrinking, and the tundra is expanding, the bears’ disparate populations are meeting, mating and creating a new breed that’s capable of reproducing: Meet the pizzly or the grolar. This new phenomenon highlights the big impact of global warming. Yet, intraspecies mixing has been part of evolution for thousands of years.
Meet the pizzly: Love in the time of climate change
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