Fetal Cells Can Persist in Mothers for Decades After Pregnancy
Fetal microchimerism is the long-term presence of a small number of fetal cells or fetal DNA in a mother after…
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Short-beaked Echidnas Use a Four-headed Penis as a Two-at-a-time Sperm Delivery System
The short-beaked echidna penis has four rosette-like heads, but only two appear to function at once during mating, acting less…
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Batesian Mimicry Hawk Moth Caterpillar Works Best When Large
Hawk moth caterpillars use Batesian mimicry by briefly turning themselves into a fake snake display: they inflate the front of…
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White Orcas Are Real, but Not All Are Albino
White orcas are real, but most white killer whales are not confirmed albinos. The key distinction is that albinism means…
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Times Beach Was Abandoned After Dioxin Contamination Made the Town Unsafe
Times Beach, Missouri, is a former town about 17 miles southwest of St. Louis that was abandoned after its roads…
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What Is Recombinant Human Insulin
Recombinant human insulin is insulin made by inserting the human insulin gene into microorganisms such as E. coli or yeast,…
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HGNC Renamed 27 Human Genes to Stop Excel Date Conversions
Twenty-seven human genes were renamed in 2019 because Excel kept auto-converting symbols such as MARCH1 and SEPT2 into dates, corrupting…
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Humans Have Pumped About 1.5 Trillion Barrels of Oil
Humanity has extracted roughly 1.1 to 1.5 trillion barrels of oil, depending on whether the source counts crude oil alone…
