Odobenus rosmarus

Walruses are social creatures, often found in large herds on ice floes or beaches. They spend a significant amount of time in the water searching for food, primarily mollusks. Their tusks aid in ice navigation and in establishing social hierarchy.

Breeding occurs in the water from January to March, with males competing for females through vocal displays and physical dominance. Females give birth to a single calf after a 15 to 16-month gestation, usually on sea ice. Calves are nursed for over a year but can swim at birth.

Walruses are notable for their long tusks, which can grow up to 1 meter (3 feet) in males, thick skin, and whiskers. Adults can weigh up to 1,500 kg (3,300 lbs) for males and 1,250 kg (2,750 lbs) for females, with a lifespan of up to 40 years in the wild.

Walruses have been integral to Arctic marine ecosystems and indigenous cultures for thousands of years, valued for their meat, tusks, and skin. They were extensively hunted from the 18th century onwards, leading to significant declines in some areas.

The walrus is currently classified as "Vulnerable" by the IUCN, with climate change posing the greatest threat due to the loss of sea ice habitat. Conservation efforts focus on protecting their natural habitat, regulating hunting, and monitoring the effects of climate change on their populations.