Here's why:
* Primary diet: Grizzly bears primarily focus on large prey like elk, deer, fish, and berries.
* Opportunity: They might consume invertebrates like ants, grubs, or beetles as an opportunistic snack, especially if they're readily available.
* Importance: While not their main food source, invertebrates can provide some extra protein and calories.
So, while grizzly bears might eat some invertebrates, it's not a defining characteristic of their diet.