Adult walruses eat about 3% to 6% of their total weight per day.
Adults may eat as many as 3,000 to 6,000 clams in a single feeding session.
Observations of feedings indicate that walruses usually fill their stomachs twice daily.
In the summer months, and during the southward migration in the fall, walruses spend most of their day foraging. They eat less on their northward migration in the spring. Food intake for mature male walruses dramatically decreases during the breeding season and probably for a shorter time for females in estrus. Pregnant females increase food consumption about 30% to 40%.
