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**Polar Bear
Scientific name: Ursus maritimus
Typical lifespan: ~20–30 years in wild (varies).
Gestation: Delayed implantation; total reproductive cycle ~195–265 days including denning (cubs born after den period).
Diet: Hypercarnivore -seals (primary), fish, carrion.
Role in nature: Arctic apex predator, controls seal populations and influences marine mammal behaviour.
Range / countries: Circumpolar Arctic -Canada, Greenland, Russia, Norway (Svalbard), USA (Alaska).
Size / height: Standing height up to 2.5–3 m on hind legs.
Weight: Adult males 350–700+ kg; females smaller (150–300 kg).
Bite force: Very strong - adapted for tearing blubber and flesh; measured values vary but overall very powerful.
Vision / hearing: Good vision; hearing acute for low- to mid-frequency sounds; strong olfaction (can detect seals under ice far away).
Abilities: Excellent swimmer (long-distance), strong fat insulation and compact fur with hollow guard hairs.
Conservation: Vulnerable - climate-change driven sea-ice loss is major threat.
Extra: Solitary, long-distance wanderers; maternal dens in snowdrifts.
2025 August 25
-Rojitha yasaswin