This week on the channel +1.4M views this week

Bisexuality brings evolutionary questions to AsapSCIENCE

Gregory Brown's new explainer connects genetics, kin selection and animal behavior, while viewers ask for more attention to bisexual women.

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AsapSCIENCE Story of October 23, 2026Trari Newsroom

No. 10 on the Science chart

Why this story? The channel's weekly summary: what went up this week, what is drawing views now, and where the channel stands among similar channels.

The Truth About Bisexuality

Things we can learn from the video

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0:20The older-brother effect describes an association between having older brothers and a man's likelihood of being gay.
0:51A maternal immune-response theory offers one proposed explanation for that association.
1:34Kin selection provides an evolutionary framework for understanding how helping relatives can support shared genes.
2:18A UK Biobank study links genetic associations with bisexuality in men to risk-taking behavior.
3:01The explainer broadens its focus to homosexual behavior across the animal kingdom.

AsapSCIENCE has given a big evolutionary question a compact treatment: how do genetic variants associated with sexual orientation persist across generations? "The Truth About Bisexuality" drew roughly 117,000 views in its first nine hours, making it the most watched of the channel's two uploads this week.

Written and animated by Gregory Brown, with editing by Luka Šarlija, the explainer moves through several proposed explanations rather than stopping at its title. It covers the older-brother effect, a maternal immune-response theory and kin selection, including the hypothesis that helping relatives raise children can have evolutionary benefits. The section specifically about bisexual men arrives later, discussing a UK Biobank study linking genetic associations with bisexuality to risk-taking behavior.

That male-centered focus has prompted a clear follow-up question in the comments: what about bisexual women? Several viewers ask whether the same explanations apply, or whether a separate video could explore the differences.

The new explainer has the channel's strongest daily momentum, followed by its same-day companion upload. September's "Nobody has EVER seen an El Niño like this" remains active too, now past eight million views.

Across the channel, daily viewing is running at less than half its usual pace, while subscribers were unchanged over the week. Among nearby science channels, Cleo Abram is having a particularly busy spell; SmarterEveryDay and The Slow Mo Guys are also drawing fewer daily views than usual. AsapSCIENCE nevertheless added about 1.4 million views over seven days, with Brown's new biology explainer supplying a fresh point of discussion.

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What viewers say

a notification so out of pocket i had to stop and watch it
@rebbn9363See it on YouTube
Do a video on bisexual women as well. What are the actual scientific benefits there? Are they the same or different?
@TheCarlScharnbergSee it on YouTube
There is no shot I was missing this video
@ChefAndyLuniqueSee it on YouTube

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