How a Seal Pup Died With a Plastic Wrapper in Its Stomach A flimsy film of plastic clogged the sick pup’s intestines and could have catalyzed its death.

Polar bears eat seals - usually ringed and bearded seals. Polar bears are the top of the Arctic's land-based food chain. Their biggest threat to survival is not other species.

Astronauts preparing for a Mars mission were accompanied by a Japanese-made robotic seal during a two-week simulation to see if it helped with their stress levels.