Insectivore

When they evolved 400 million years ago, the first amphibians were piscivores, with numerous sharp conical teeth, much like a modern crocodile.

[5] Examples of insectivores include different kinds of species of carp, opossum, frogs, lizards (e.g. chameleons, geckos), nightingales, swallows, echidnas,[6] numbats, anteaters, armadillos, aardvarks, pangolins, aardwolfs,[7] bats, and spiders.

Insects also can be insectivores; examples are dragonflies, hornets, ladybugs, robber flies, and praying mantises.

However, most species to which such food represents an important part of their intake are specifically, often spectacularly, adapted to attract and secure adequate supplies.

[12]: 14–17  Also known as carnivorous plants, they appear adapted to grow in places where the soil is thin or poor in nutrients, especially nitrogen, such as acidic bogs and rock outcroppings.

Indeed, much as large mantids and spiders will do, the larger varieties of pitcher plants have been known to consume vertebrates such as small rodents and lizards.