These animals eat absurd amounts of food

Humans on Thanksgiving are no match for these extreme eaters, like hummingbirds, who eat twice their body weight in a day.

In the U.S. it’s nearly Thanksgiving, a time we gather to appreciate what we have—and feel our waistlines expand like a puffer fish.

With the most food-centric holiday upon us, we wondered which non-human animals stuff themselves, and why?

Many birds chow down to sustain themselves before long non-stop flights over oceans or deserts, says Dan Roby, a wildlife ecologist at the U.S. Geological Survey and Oregon State University, by email. Scientists call these periods of intense feeding “hyperphagy.”

With one of the world’s longest migrations, the blackpoll warbler has to seriously fuel up before its trip. The tiny birds breed as far north as Alaska, and each year fly to New England, where they “double their weight by

DON'T MISS THE REST OF THIS STORY!
Create a free account to continue and get unlimited access to hundreds of Nat Geo articles, plus newsletters.

Create your free account to continue reading

No credit card required. Unlimited access to free content.
Or get a Premium Subscription to access the best of Nat Geo - just $19
SUBSCRIBE

Read This Next

SeaWorld violated the Animal Welfare Act. Why is it still open?
'World’s worst shipwreck' was bloodier than we thought
World’s first ultrasounds of wild manta rays reveal a troubling truth

Go Further

Subscriber Exclusive Content

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet