Headbutt

It is considered a quick, very effective but risky maneuver, as a misplaced strike can also cause injury to the person delivering the headbutt.

[5] Many males in various animal species employ butting during courtship to show off their strength to potential mates.

Cats engage in a gentle behavior that resembles headbutting, where they "bunt" a person or another animal with their forehead scent glands to mark their territory with pheromones.

However, it is a strike allowed in Burmese boxing, capoeira, muay boran, combat sambo, some full-contact karate rulesets/variants - namely Kūdō - and in the self-defence art of krav maga.

[7] Headbutts were a commonly used technique in vale tudo and mixed martial arts before the introduction of the unified rules of MMA.

Similarly, although the art itself forbids any kind of strikes, some masters of judo taught the use of headbutts under the name of atama ate waza, as demonstrated by Kyuzo Mifune and Mikinosuke Kawaishi.

[10] Famously, during the 2006 FIFA World Cup Final between Italy and France, French team captain Zinedine Zidane headbutted Italian player Marco Materazzi, after an angry exchange.

[18] On March 3, 2014, Milena Knežević headbutted Anita Görbicz during the last seconds of the game between ŽRK Budućnost and Győri ETO KC in the EHF Women's Champions League group stage.

[19] On April 9, 2017, Japanese wrestler Katsuyori Shibata headbutted Kazuchika Okada during their match at Sakura Genesis 2017.