yes the cubs would starve if they didnt
No. Killer whales will prey on polar bears, but not other whales like Grey, Bow or Humpback whales nor walruses because these species feed in plankton and small fish, not polar bears or polar bear cubs.
polar bears are white showing the camouflage so the can catch their prey
polar bears are diurnal, because they sleep and rest at night and stay awake in the day to catch there prey or look after there cubs but they do rest at night just like our humans....,
They are not prey, they are apex predators.
The only natural predator of polar bears is the orca, or killer whale. While adult polar bears are apex predators in their Arctic habitat, orcas can occasionally prey on cubs or young bears, particularly when they venture into open water. However, this predation is relatively rare, as polar bears are formidable hunters themselves.
Yes they do.
Polar Bears
The seals are eaten by polar bears
Polar bears are usually considered to be predators but are occasionally preyed on by orcas.
the winter is not good for the polar bears because they find their prey less in the winter.
Orcas are known to occasionally kill and eat swimming polar bears.
In their Arctic environment, polar bears are the highest predator in the food chain.They have no natural predator themselves. However they are also unfortunately "prey" to humans who illegally hunt them for their pelts.