Intelligence
In a paper published in 2009, researchers found that mockingbirds were able to recall an individual human who, earlier in the study, had approached and threatened the mockingbirds' nest. Researchers had one participant stand near a mockingbird nest and touch it, while others avoided the nest. Later, the mockingbirds recognized the intruder and exhibited defensive behavior, while ignoring the other individuals.
Read more about this topic: Northern Mockingbird
Famous quotes containing the word intelligence:
“But as these angels, the only halted ones
among the many who passed and repassed,
trod air as swimmers tread water, each gazing
on the angelic wings of the other,
the intelligence proper to great angels flew into their wings,
the intelligence called intellectual love....”
—Denise Levertov (b. 1923)
“If woman alone had suffered under these mistaken traditions [of women’s subordination], if she could have borne the evil by herself, it would have been less pitiful, but her brother man, in the laws he created and ignorantly worshipped, has suffered with her. He has lost her highest help; he has crippled the intelligence he needed; he has belittled the very source of his own being and dwarfed the image of his Maker.”
—Clara Barton (1821–1912)
“One definition of man is “an intelligence served by organs.””
—Ralph Waldo Emerson (1803–1882)