The English language has a lot of interesting expressions when it comes to talking about animals in groups, some of which are more well known than others.
For example, when we speak about insects or certain types of fish, we use the word "the swarm," but cows and other grazing animals wander in "herds."
Finally, the swarm gets the better of the bear.
Caption 18, America's National Parks Yosemite
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Herd animals rely on safety in numbers.
Caption 48, BBC Planet Wild: Alien Animals
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For fish, you'll also hear "school" rather than "swarm." We say "a pod of whales" and "a pack of wolves."
Just last week, some surfers beat a hasty retreat to dry land after having a close encounter with a pod of killer whales off of Vancouver Island.
Captions 6-7, ABC News: Killer Sharks vs. Killer Whales
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The bear is stronger, but the wolves have the benefit of the pack.
Caption 5, Nature & Wildlife: Search for the Ghost Bear
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Interestingly, when birds fly together, they fly in a "flock." But when it comes to nesting, the chicks are called a "brood."
High up in the sky, a flock of birds were flying by.
Caption 30, Fairy Tales The Ugly Duckling - Part 2
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The mother duck wanted to comfort the Ugly Duckling, but she was much too busy taking care of the rest of her brood.
Captions 46-47, Story Hour: The Story of The Ugly Duckling
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Penguins and various burrowing animals are referred to as a "colony."
After his short excursion to the marmot colony, the male deer heads back to the lower areas of the park.
Captions 3-4, America's National Parks: Yosemite
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Further Learning
There are dozens of even odder words that are used to describe groups of animals, and not all of them appear on Yabla English. For example, you can say "a pride of lions," "a troop of monkeys," "a murder of crows," or "a parliament of owls."