claim: “For example, Canadian polar bear biologist Ian Stirling learned in the 1970s that spring sea ice in the southern Beaufort Sea periodically gets so thick that seals depart, depriving local polar bears of their prey and causing their numbers to plummet.
evidences.evidence_id: Polar bear:139
evidences.article: Polar bear
evidences.evidence: The Arctic is home to millions of seals, which become prey when they surface in holes in the ice in order to breathe, or when they haul out on the ice to rest.
evidences.votes: REFUTES SUPPORTS
evidences.evidence_id: Polar bear:173
evidences.article: Polar bear
evidences.evidence: Unlike brown and black bears, polar bears are capable of fasting for up to several months during late summer and early fall, when they cannot hunt for seals because the sea is unfrozen.
evidences.votes: REFUTES NOT_ENOUGH_INFO
evidences.evidence_id: Polar bear:218
evidences.article: Polar bear
evidences.evidence: Then they begin the long walk from the denning area to the sea ice, where the mother can once again catch seals.
evidences.votes: SUPPORTS SUPPORTS
evidences.evidence_id: Polar bear:402
evidences.article: Polar bear
evidences.evidence: It has been claimed that polar bears will be able to adapt to terrestrial food sources as the sea ice they use to hunt seals disappears.
evidences.votes: REFUTES REFUTES
evidences.evidence_id: Polar bear:7
evidences.article: Polar bear
evidences.evidence: Polar bears hunt their preferred food of seals from the edge of sea ice, often living off fat reserves when no sea ice is present.
evidences.votes: SUPPORTS SUPPORTS