Saved on this device

Follow your curiosity

What discovery has been shared with you?

FACTREE gives you something interesting to discover every day — and something worth talking about together.

Start with one fact. Explore it, go deeper, then follow whichever branch catches your imagination.

Choose subjects for a surprise

Exploring any topic

Begin your discovery

Your next discovery is one click away.

Choose one or more subjects above, or leave Any Topic selected and let curiosity decide.

Biology

Behavioral Syndromes and Personality Traits in Great Tits

Quick fact

Great tits exhibit stable individual differences in exploration behavior: some are 'fast explorers' that quickly investigate new environments, while others are 'slow explorers' that cautiously assess novelty. These personality differences have a heritable genetic basis and are linked to survival and reproductive success.

Why this is interesting

Have you ever noticed that some birds seem bolder than others, even within the same species? In great tits, these individual differences are surprisingly consistent—almost like animal personalities.