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Questions for Discussion: Studying Antarctic Seals

What are three different methods scientists can use to find the body mass of seals?
What can the size of the mother seals tell the scientists?
How long do the pups stay with their mothers? Why is the size of seal pups at weaning a critical factor for their survival?
What are some reasons that scientists like Jen Mannas study the life cycles of generations of seals in this colony?
Do you think that changes in sea ice as a result of climate change might affect Weddell seals? Explain.