In the aftermath of a grisly massacre, fewer male twins than expected were born, indicating a Bruce Effect in humans https://www.cambridge.org/core/journals/twin-research-and-human-genetics/article/twinning-in-norway-following-the-oslo-massacre-evidence-of-a-bruce-effect-in-humans/C3886D3A2A3A2722D5ACC71684D374F4 …pic.twitter.com/m1qCh1U0fE
11:42 AM - 7 Oct 2016
from Berlin, Germany
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