# @dailymail on Instagram

- **Type:** Video
- **Original URL:** https://www.instagram.com/p/DZcUGMkIZ5b
- **Gondola URL:** https://gondola.cc/posts/66725064-dailymail-instagram
- **Thumbnail:** https://img.gondola.cc/tr:w-,h-,fo-auto/postThumbnails/f967235bfd.jpg
- **Posted:** 2026-06-11T10:34:27.000+00:00
- **Account Owner:** Daily Mail (@dailymail) — https://gondola.cc/dailymail

## Caption

A study has found that first-born children tend to score slightly higher on IQ tests than their younger siblings, adding fresh evidence to the long-debated 'birth order' theory.

Published in the Proceedings of the National Academy of Sciences (PNAS), the research found a small but consistent drop in cognitive scores with each birth-order position.

Researchers also noted that birth order had little to no effect on personality traits such as extraversion or agreeableness, despite long-running stereotypes about sibling roles.

📸 Getty

#research #science #IQ #intelligence

## Stats

- **Views:** 5,908
- **Likes:** 82
- **Shares:** 0
- **Comments:** 3

## Tags

iq, science, research, intelligence

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