Skip to content
By using Twitter’s services you agree to our Cookies Use. We and our partners operate globally and use cookies, including for analytics, personalisation, and ads.

This is the legacy version of twitter.com. We will be shutting it down on June 1, 2020. Please switch to a supported browser, or disable the extension which masks your browser. You can see a list of supported browsers in our Help Center.

  • Home Home Home, current page.
  • About

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @
  • Language: English
    • Bahasa Indonesia
    • Bahasa Melayu
    • Català
    • Čeština
    • Dansk
    • Deutsch
    • English UK
    • Español
    • Filipino
    • Français
    • Hrvatski
    • Italiano
    • Magyar
    • Nederlands
    • Norsk
    • Polski
    • Português
    • Română
    • Slovenčina
    • Suomi
    • Svenska
    • Tiếng Việt
    • Türkçe
    • Ελληνικά
    • Български език
    • Русский
    • Српски
    • Українська мова
    • עִבְרִית
    • العربية
    • فارسی
    • मराठी
    • हिन्दी
    • বাংলা
    • ગુજરાતી
    • தமிழ்
    • ಕನ್ನಡ
    • ภาษาไทย
    • 한국어
    • 日本語
    • 简体中文
    • 繁體中文
  • Have an account? Log in
    Have an account?
    · Forgot password?

    New to Twitter?
    Sign up
DegenRolf's profile
Rolf Degen
Rolf Degen
Rolf Degen
@DegenRolf

Tweets

Rolf Degen

@DegenRolf

Science writer and book author in psychology, neuroscience and evolution

bonn
amazon.com/Rolf-Degen/e/B…
Joined July 2013

Tweets

  • © 2020 Twitter
  • About
  • Help Center
  • Terms
  • Privacy policy
  • Imprint
  • Cookies
  • Ads info
Dismiss
Previous
Next

Go to a person's profile

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @

Promote this Tweet

Block

  • Tweet with a location

    You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more

    Your lists

    Create a new list


    Under 100 characters, optional

    Privacy

    Copy link to Tweet

    Embed this Tweet

    Embed this Video

    Add this Tweet to your website by copying the code below. Learn more

    Add this video to your website by copying the code below. Learn more

    Hmm, there was a problem reaching the server.

    By embedding Twitter content in your website or app, you are agreeing to the Twitter Developer Agreement and Developer Policy.

    Preview

    Why you're seeing this ad

    Log in to Twitter

    · Forgot password?
    Don't have an account? Sign up »

    Sign up for Twitter

    Not on Twitter? Sign up, tune into the things you care about, and get updates as they happen.

    Sign up
    Have an account? Log in »

    Two-way (sending and receiving) short codes:

    Country Code For customers of
    United States 40404 (any)
    Canada 21212 (any)
    United Kingdom 86444 Vodafone, Orange, 3, O2
    Brazil 40404 Nextel, TIM
    Haiti 40404 Digicel, Voila
    Ireland 51210 Vodafone, O2
    India 53000 Bharti Airtel, Videocon, Reliance
    Indonesia 89887 AXIS, 3, Telkomsel, Indosat, XL Axiata
    Italy 4880804 Wind
    3424486444 Vodafone
    » See SMS short codes for other countries

    Confirmation

     

    Welcome home!

    This timeline is where you’ll spend most of your time, getting instant updates about what matters to you.

    Tweets not working for you?

    Hover over the profile pic and click the Following button to unfollow any account.

    Say a lot with a little

    When you see a Tweet you love, tap the heart — it lets the person who wrote it know you shared the love.

    Spread the word

    The fastest way to share someone else’s Tweet with your followers is with a Retweet. Tap the icon to send it instantly.

    Join the conversation

    Add your thoughts about any Tweet with a Reply. Find a topic you’re passionate about, and jump right in.

    Learn the latest

    Get instant insight into what people are talking about now.

    Get more of what you love

    Follow more accounts to get instant updates about topics you care about.

    Find what's happening

    See the latest conversations about any topic instantly.

    Never miss a Moment

    Catch up instantly on the best stories happening as they unfold.

    Rolf Degen‏ @DegenRolf Jan 14
    • Report Tweet
    • Report NetzDG Violation

    Men's fixation on the female breast still defies a solid evolutionary explanation. https://www.psychologytoday.com/intl/blog/how-we-do-it/202001/just-how-important-is-breast-size-in-attraction …pic.twitter.com/BbIeuH57C4

    9:04 PM - 14 Jan 2020
    • 53 Retweets
    • 220 Likes
    • Vague & Candid 👨‍👩‍👦‍👦🤔🍀🍄🚼🇫🇮 Israel Ramirez Minerva Martin Fogel R. M. Qualtrough Brian Kautilya Eb 🇿🇦🇬🇭 Fun and Games
    28 replies 53 retweets 220 likes
      1. Stuart Sims‏ @SimsYStuart Jan 14
        • Report Tweet
        • Report NetzDG Violation
        Replying to @DegenRolf

        Really? Science has failed to unriddle the mystery of boobs? Maybe we need a larger sample size. 😳

        0 replies 0 retweets 16 likes
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. New conversation
      2. LZBTH  ⭐️ ⭐️ ⭐️QT 🥧‏ @baxter_lizzie Jan 14
        • Report Tweet
        • Report NetzDG Violation
        Replying to @DegenRolf

        Attachment, Bonding, oxytocin, nurture, sustenance.

        1 reply 1 retweet 5 likes
      3. Bingo‏ @Zugzwangame Jan 14
        • Report Tweet
        • Report NetzDG Violation
        Replying to @baxter_lizzie @DegenRolf

        Exactly. Seems a no brainer to me..

        0 replies 0 retweets 0 likes
      4. End of conversation
      1. Fix Pire‏ @Fixpir Jan 14
        • Report Tweet
        • Report NetzDG Violation
        Replying to @DegenRolf

        I always assumed it had the same function as keyed plugs in electronics: avoid mistakes. Apparently not 100%efficient.

        0 replies 0 retweets 4 likes
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. Osmo Tammisalo‏ @otammisalo Jan 14
        • Report Tweet
        • Report NetzDG Violation
        Replying to @DegenRolf

        Sign of youth (if it looks like gravity hasn’t affected them much) = Many fertile years ahead and greater likelihood of grandmother around to help.

        0 replies 0 retweets 2 likes
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. Legion‏ @VenousRising Jan 15
        • Report Tweet
        • Report NetzDG Violation
        Replying to @DegenRolf

        They indicate sexual maturity. Erect nipples can show arousal. Seems fairly obvious why men like them.

        0 replies 0 retweets 1 like
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. Wayne Hall‏ @WayneInPortage Jan 15
        • Report Tweet
        • Report NetzDG Violation
        Replying to @DegenRolf

        Breasts allow women to hypnotize men. It is easy to test this rather than discount it.

        0 replies 0 retweets 1 like
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. A. Norman‏ @AFIChai Jan 15
        • Report Tweet
        • Report NetzDG Violation
        Replying to @DegenRolf

        Peacock tail for women.

        0 replies 0 retweets 1 like
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. Märck‏ @ElleryCelereee Jan 15
        • Report Tweet
        • Report NetzDG Violation
        Replying to @DegenRolf

        I'm uncertain what is meant by "medium size", since a C-cup can look quite different on a Size 2 woman vs a Size 12 one.

        0 replies 0 retweets 1 like
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. john‏ @probiotical Jan 14
        • Report Tweet
        • Report NetzDG Violation
        Replying to @DegenRolf

        The answer is 'Proportionality and symmetry.'

        0 replies 0 retweets 0 likes
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo

    Loading seems to be taking a while.

    Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.

      Promoted Tweet

      false

      • © 2020 Twitter
      • About
      • Help Center
      • Terms
      • Privacy policy
      • Imprint
      • Cookies
      • Ads info