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Life at the Poles

How these connect

Polar Bear (Ursus maritimus) and what it relates to. Every line is an evidence-backed relation, and the arrangement is fixed — this address draws this picture, today and next year.

depends_on — The bear hunts from the surface of the ice; where and when the ice is absent it cannot reach seals at all, which is why the IUCN identifies sea-ice loss as the principal threat to the species.located_in — Its nineteen recognised subpopulations occupy the sea ice of the Arctic basin and its adjacent seas; the species exists nowhere else and has no southern counterpart.preys_on — The ringed seal is the polar bear's principal prey across most of its range, taken at breathing holes and by breaking into birth lairs.depends_on — It maintains breathing holes through thick fast ice with its foreflipper claws and pups in a lair excavated in the snow drift above the hole; both stable ice and sufficient snow are required.Sea IceSea IceArctic OceanArctic OceanPolar Bear (Ursus maritimus)Polar Bear (Ursus maritim…Ringed Seal (Pusa hispida)Ringed Seal (Pusa hispida)
4 drawn · 14 reachable and not drawn · positions derived from object ids, never from a simulation
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Every relation drawn, in words4
  1. Polar Bear (Ursus maritimus) · depends_on · Sea Ice

    The bear hunts from the surface of the ice; where and when the ice is absent it cannot reach seals at all, which is why the IUCN identifies sea-ice loss as the principal threat to the species.

  2. Polar Bear (Ursus maritimus) · located_in · Arctic Ocean

    Its nineteen recognised subpopulations occupy the sea ice of the Arctic basin and its adjacent seas; the species exists nowhere else and has no southern counterpart.

  3. Polar Bear (Ursus maritimus) · preys_on · Ringed Seal (Pusa hispida)

    The ringed seal is the polar bear's principal prey across most of its range, taken at breathing holes and by breaking into birth lairs.

  4. Ringed Seal (Pusa hispida) · depends_on · Sea Ice

    It maintains breathing holes through thick fast ice with its foreflipper claws and pups in a lair excavated in the snow drift above the hole; both stable ice and sufficient snow are required.