(3)_____ the bears are very strong swimmers, they could never catch seals in water. This means that the bears really do rely on the ice to hunt. Polar bears also need sea ice to travel. They
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(3)_____ the bears are very strong swimmers, they could never catch seals in water. This means that the bears really do rely on the ice to hunt. Polar bears also need sea ice to travel. They can cover a huge territory and often swim from one part of the ice to another.