Flocks of birds or schools of fish often group together in massive numbers, and move as though they are a single organism with one brain.
The behavior is called a murmuration, and scientists are trying to figure out how — and why — the animals do it.
Paige Pfleger (@PaigePfleger) of Here & Now contributor WHYY went to a landfill in Atlantic County, New Jersey, to observe the phenomenon firsthand.
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