Assertion or assert may refer to: Assertion (software development), a computer programming technique. assert.h, a header file in the standard library of the C programming language. Assertion definition language, a specification language providing a formal grammar to specify behaviour and interfaces for computer software.
Grass snakes prey mainly on amphibians, especially the common toad and the common frog, although they may also occasionally eat ants and larvae. Captive snakes have been observed taking earthworms offered by hand, but dead prey items are never taken.
Most of them average about one foot, but there is a species out in Arizona that gets to be a foot and a half long. Primarily they feed on insects, earthworms, and crickets and things. But some of the larger ones are even known to feed on coral snakes. These are very pretty snakes that turn their tail up to show their warning colors, which are usually yellow, orange, or red.