Ekans

It flutters the tip of its tongue to seek out the scent of prey, then swallows the prey whole.

EKANS curls itself up in a spiral while it rests. Assuming this position allows it to quickly respond to a threat from any direction with a glare from its upraised head.

An EKANS curls itself up in a spiral while it rests. This position allows it to quickly respond to an enemy from any direction with a threat from its upraised head.

A very common sight in grassland, etc. It flicks its tongue in and out to sense danger in its surroundings.

Moving silently and stealthily, it eats the eggs of birds, such as PIDGEY and SPEAROW, whole.

It sneaks through grass without making a sound and strikes unsuspecting prey from behind.

It can freely detach its jaw to swallow large prey whole. It can become too heavy to move, however.

By dislocating its jaw, it can swallow prey larger than itself. After a meal, it curls up and rests.

The eggs of bird Pokémon are its favorite food. It swallows eggs whole, so sometimes an egg gets stuck, and Ekans faints.