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[SDE.BE]Environmental Sciences/Biodiversity and Ecology
1
[SDV.BA.ZV]Life Sciences [q-bio]/Animal biology/Vertebrate Zoology
[SDV.BDLR.RS]Life Sciences [q-bio]/Reproductive Biology/Sexual reproduction
1
environment
fertility
1
litter production
1
litter size
1
offspring survival
1
polar bears
1
reproductive senescence
1
sea ice
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