Seals ride icebergs strategically to scoot around seas

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Scientists have learned that seals ride icebergs strategically to scoot around Earth’s seas. They’ve learned that seal moms in icy parts of Earth’s globe use icebergs shed by glaciers as safe platforms to give birth and care for their young. The moms prefer stable, slower-moving bergs when caring for their newborn seal pups. Then, in the molting season, the moms and the rest of the seal population appear to move to speedier ice near the best foraging grounds.