insectivorous

If an animal is insectivorous, it mainly eats insects. Think of an anteater using its long tongue to catch ants, or a Venus flytrap closing on a bug. It is not just about eating insects once in a while. These creatures are built to live on that kind of food. Many animals eat insects sometimes, but an insectivorous animal depends on them as its main food source. You might say a certain bird is "largely insectivorous" if bugs make up most of its meals.

The word "insectivorous" describes organisms, usually animals but sometimes plants, whose diet consists mainly or entirely of insects. It comes from the Latin words insectum (insect) and -vorus (devouring). But it is more than just a fancy way to say "bug-eater." It suggests some kind of adaptation: a physical feature or behavior that helps the creature catch and digest insects efficiently.

Consider the chameleon, with its lightning-fast tongue perfectly designed for snatching up flies. Or the echidna, a spiny anteater whose long snout helps it probe into ant nests. Even some plants are insectivorous! The Venus flytrap, pitcher plant, and sundew all lure, trap, and digest insects to supplement their nutrient intake – especially in poor soils.

While many animals occasionally eat insects (birds snacking on caterpillars, for example), an animal is considered truly insectivorous when insects form the dominant part of its diet. You might read a scientific report stating that "the population's survival is heavily reliant on an insectivorous diet," or hear a nature documentary describe a certain frog as "strictly insectivorous." The term isn't usually applied to humans, though some cultures do consume insects as part of their cuisine!

So, if you encounter a creature with a clear preference for six-legged snacks, chances are it's an insectivore – a master of the bug buffet.