How long will an eider stay full after eating a human
An eider (1.93–1.99 kilograms, 15 years 9 months) can feed on a human (62–76 kilograms, 33 years): one prey keeps it full for 8 months 4 weeks, so it needs about 0.004 per day.
How long does a human last an eider?
About 8 months 4 weeks.
How many humans does an eider eat per day?
About 0.004 per day.
How is it worked out how long the food lasts?
We look at how much food such an animal needs per day and how much there is in the prey; other masses can be set in the calculator.