Skip to main content
0
Search products
Search
Mugs
Tees
Hoodies
Search products
Search
Chat
Share
Free Shipping
Menu
Mugs
Tees
Hoodies
Back to urbandictionary.com
Pro Customization
Create unique products with your own words and definitions
Preview
Personalize Your Design
Your Word
Your Definition
Greenbeard altruism is a fascinating concept in evolutionary biology that attempts to explain the evolution of altruistic behavior. It proposes that a single gene (or a set of tightly linked genes) can be responsible for three distinct traits: a noticeable signal or "tag" (like a green beard), recognition of that signal in others, and altruistic behavior directed towards those with the same signal. This allows individuals to selectively cooperate with others who share the same gene, even if they are not related. 1 While the "green beard" example is hypothetical, there are real-world examples of this phenomenon in various organisms, highlighting the potential for cooperation to arise through mechanisms beyond kin selection.
Text fits
Save
Cancel
🤖
Shopping Assistant
Online
Hey! 👋 I'm your shopping assistant. What are you looking for?
Ask about products
AI-generated responses. Verify claims.