Rhyhorn is a small rhinoceros-like creature with a body consisting of gray, rocky plates. It has a ridge on its back, and visible fangs protruding from its upper jaw. Rhyhorn has four short legs with two claws. Its head is triangle-shaped with a single, short horn. Rhyhorn has small triangular openings on the sides of its head, which can be presumed to be ears.
A female has a shorter horn.
Rhyhorn's most well known method of attack is to charge straight into things. A charging Rhyhorn can knock a trailer flying. Rhyhorn can also use various Rock and Ground attacks. They can learn special attacks, but these types of attacks are not very strong when used by Rhyhorn. Rhyhorn are one of the few Pokémon capable of learning Megahorn.
According to earlier entries in the Pokédex, Rhyhorn is actually brainless. This perception was, most likely, not meant to be taken literally. This conclusion of brainlessness was most likely derived from Rhyhorn’s exceedingly unintelligent methods of battle. Rhyhorn’s animal instinct is simply to charge at any enemy or barrier that threatens its well-being. The species is also perceived to have a very short memory, and is seemingly often confused by circumstances it directly influenced. It is popularly believed that they are only able to remember one thing at a time. Despite their severe setbacks in intelligence, they have been recorded as being surprisingly perceptive once captured.
Rhyhorn live in open plains and mountain ranges. They are often found in Kanto.
This Pokémon was unavailable prior to Generation I.