head butting

animal behavior

Written by

The Information Architects of Encyclopaedia Britannica

Last updated

July 16, 2026

Quick Summary

Head butting is an aggressive behavior seen in various animals, including cetaceans like dolphins and whales. This action involves forcefully striking another individual with the head, often as a means of establishing dominance or competing for mates. In some species, such as adult male beaked whales, specialized bony heads are used as weapons in these contests. This behavior can be dangerous, leading to injuries like broken ribs and vertebrae, and has even been documented as a cause of death for other animals and in interactions with boats. While head butting is a form of aggression, it is distinct from the concept of a dominance hierarchy, which describes a social structure where individuals are ranked, and direct conflict is usually minimized.12

Summary created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

6 Britannica Sources

Ask Britannica AI about this topic

Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.

cetacean
Aggression and defense
…dangerous means of aggression is head butting. Cetaceans can ram their heads into other individuals and kill them. This has been seen in captivity and in aggressive behaviours toward other species such as sharks and accounts for many of the broken ribs and vertebrae seen in stranded animals.
Read More
…dangerous means of aggression is head butting. Cetaceans can ram their heads into other individuals and kill them. This has been seen in captivity and in aggressive behaviours toward other species such as sharks and accounts for many of the broken ribs and vertebrae seen in stranded animals.
Read More