The bird in Aesop’s story drops stones into a pitcher.
crow
Crows belong to this bird family.
corvids
Scrub jays were given worms and this other food.
peanuts
Crows can recognize human ______.
faces
New Caledonian crows shape sticks into these.
hooks
The crow drops these into the pitcher to raise the water level.
stones
Two other birds in the corvid family.
ravens, jays, or magpies
The worms would do this quickly.
spoil
When they saw the masked person again, they did this.
react (flew at them and made loud noises)
In Japan, crows let cars do this to nuts.
crack them open
In the 2014 test, scientists used this long container filled with water.
tube
This bird can hide up to 30,000 pine nuts.
the Clark’s nutcracker
The birds ate worms first because they understood this about time.
worms go bad quickly
When crows gather around a dead crow, it looks like this ceremony.
funeral
These special brain cells help with thinking and problem-solving.
neurons
The experiment showed crows can solve problems in this way.
smart and creative ways
Corvids are known for being especially ______.
intelligent
Hiding food for the next day shows this skill.
planning ahead
Crows live in groups and often do this to scare predators away.
work together / scare off predators
Corvid brains contain a ______ number of neurons compared to primates.
similar
This experiment proved the old story was surprisingly ______.
accurate
Scientists once underestimated corvids because they thought their brains were too ______.
simple
Remembering what, where, and when food was hidden shows strong ______.
memory
This word describes living and interacting with others.
social
The article suggests crows might remember you because they have strong ______.
awareness / intelligence