Squirrels can find many buried nuts by remembering where they hid them and using nearby landmarks as clues. In a controlled study, eastern gray squirrels recovered their own caches more accurately than caches made by other squirrels, showing that smell alone does not explain how they find stored food. They do not recover every nut, and forgotten caches can sometimes grow into plants.
Why squirrels store food in many places
Many tree squirrels use scatter hoarding: they hide food in separate small caches across an area instead of keeping everything in one larder. This spreads the risk that another animal will steal the whole supply. Which nuts they store, how far they carry them, and how they arrange caches can vary with species and local conditions. [1]
Hiding food takes time, so retrieving it later matters. Squirrels use spatial memory and visual landmarks, such as trees and other features, to navigate back to cache locations.
What experiments say about squirrel memory
A classic experiment with eastern gray squirrels compared how well animals recovered their own caches with caches made by other squirrels. The squirrels retrieved their own hiding places more accurately, supporting the idea that they remembered locations rather than relying only on scent. [2]
That finding does not mean a squirrel has a perfect map of every nut. The experiment measured behavior in a particular setting and species; wild cache recovery depends on weather, soil, predators and how long ago the food was hidden.
Do squirrels forget some nuts?
Yes. A squirrel may fail to find a cache, move food to another hiding place, or abandon it when conditions change. A seed that remains in suitable soil can sometimes germinate. This makes squirrels seed dispersers, although whether a seed grows depends on the plant, location, season and chance.
Explore another food puzzle in why larger nuts rise in a shaken snack mix and learn what researchers know about crows remembering people.
Frequently asked questions
Do squirrels use smell to find buried nuts?
Smell may help, but experiments show that spatial memory also plays an important role in recovering a squirrel’s own caches.
Do squirrels remember every hiding place?
No. They recover many caches, but some are missed, stolen, or moved.
Can a forgotten nut grow into a tree?
Sometimes. A seed may sprout if it remains viable and the conditions are suitable.
The takeaway
Squirrels combine memory with environmental cues to recover stored food. Their success is substantial but imperfect, and those missed caches can have consequences for the plants around them.
Sources and evidence
- Animal Behaviour — Grey squirrels remember the locations of buried nuts ↗
A controlled study testing whether eastern gray squirrels remember the locations of their own food caches.
- Smithsonian Science Education Center — Why Do Squirrels Bury Nuts? ↗
Explains food caching, cache recovery and why squirrels store nuts.
Sources consulted: 15 October 2026. Written with AI assistance and checked against the linked references; not independently reviewed by a subject specialist. Sources do not endorse this article. See our editorial policy.
Revision: Initial publication; the explanation distinguishes experimental evidence about cache memory from generalizations about wild squirrels.