ECOLOGY

BIOSPHERE

• 3,959 miles in radius.
• Population-7.046 billion

ECOSYSTEM

• Biotic-Polar bears,fish,penguins, and whales.
• Average temp.-(-75°)F.
• Abiotic- water, ice,and snow.
• Amount of precipitation-166 mm per year.

COMMUNITY

• Habitat-Antarctica
• Niche-they live in ice cracks to protect themselves.
• They eat squid, fish, shrimp, and crab.
• There hunted by orcas,polar bears, and humans

POPULATION

• There are about 80,000 narwhals worldwide.

ORGANISM

• Narwhal
• It's a carnivore.
• There lifespan is about 50-100 years.