the.com/bait ball
Fish democracy in action: thousands vote with their bodies to not be eaten first.
means A tightly packed, swirling mass of small fish that bunch together into a single shifting sphere when predators attack, each fish gambling that the middle is safer than the edge.
from Straightforward marine compound: 'bait' because these schooling fish (sardines, anchovies, herring) are exactly what larger predators—and fishermen—use as bait or hunt as prey, and 'ball' for the dense spherical shape they form under attack. The term comes out of fishing and diving vocabulary rather than any single coiner; it simply describes what sailors and divers watched happen in the water, long before marine biologists gave the behavior its formal name (a predator-avoidance strategy sometimes called the 'selfish herd' effect).
- the logic
- predators can only eat the edge, not the middle
- size
- can stretch wider than a football field
- triggered by
- tuna, dolphins, sharks, and gannets attacking at once
- lifespan
- often collapses within minutes, eaten from outside in