ScienceFriendly introductions to questions from across science. Start with something familiar, discover the explanation, and keep exploring.
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No. No stem cell treatment approved anywhere in the world is manufactured from aborted fetuses, and the vaccine and cell lines most often named in this debate trace to two elective terminations performed in 1962 and 1973—not to ongoing…
Read the story ↗Tardigrades are extremotolerant, not extremophiles. The distinction is precise: an extremophile requires extreme conditions to complete its life cycle, while an extremotolerant organism merely survives them without depending on them.
Let's find outShrimp and prawns are not the same animal, though both are decapod crustaceans and both land on the same dinner plates.
Let's find outAre tattoos self-harm? No — not by definition. Self-harm is deliberate self-inflicted injury used to regulate distress, and the clinical criteria require that function, not the wound itself.
Let's find outYes, strawberries and blueberries are good for you, and they are among the most nutrient-dense fruits you can eat.
Let's find outAre skin tag removers safe? For most people, yes, home and professional removal of skin tags (acrochordons) is low-risk, but safety depends entirely on correct diagnosis: benign skin tags rarely bleed, ulcerate, or change color, and…
Let's find outYes, scrambled eggs are good for pregnancy, provided they are cooked until both the white and yolk are fully firm and served hot.
Let's find outStick insects are not poisonous or venomous to humans. No species injects venom, and none carries toxins that cause harm when touched or eaten.
Let's find outSteroids are not effective for treating typical RSV bronchiolitis in infants, and major guidelines recommend against their routine use.
Let's find outSquid occupy both levels, and the answer depends on the species and its life stage rather than the group as a whole.
Let's find outAre stress tests accurate for detecting heart disease? They are moderately accurate, not definitive.
Let's find outYes, small scorpions are poisonous, and in many cases they are more dangerous than large ones.
Let's find outYes, horseradish leaves are edible, and people have eaten them for centuries in Eastern Europe and Scandinavia.
Let's find outSeedless watermelons are not genetically modified in the sense most people mean.
Let's find outYes, canned sardines packed in olive oil are genuinely good for you for most adults, delivering roughly 20 to 25 grams of protein, 1.0 to 1.8 grams of omega-3 fatty acids, and 300 to 400 international units of vitamin D per 3.5-ounce…
Let's find outAre scorpions poisonous or venomous? Scorpions are venomous, not poisonous, and the distinction is a mechanism, not a technicality. Venomous animals inject a toxin through a wound, usually a stinger or fang.
Let's find outAre service berries poisonous? No. The fruit of serviceberry trees and shrubs (*Amelanchier* species) is edible and non-toxic to humans when eaten ripe, and the plant is not listed among poisonous plants by the FDA, CDC, or American…
Let's find outYes, sesame seeds are gluten free. Pure sesame seeds contain no gluten proteins because sesame is an oilseed, not a cereal grain, and gluten occurs only in wheat, barley, rye, and their hybrids.
Let's find outAre skin tags a true sign of diabetes? No — a skin tag (acrochordon) is not a diagnostic sign of diabetes.
Let's find outKidney stones are usually painful rather than dangerous, with most stones under 5 millimeters passing on their own without lasting harm.
Let's find outYes, slow lorises are venomous, and they are the only venomous primates known to science. A bite from a slow loris can produce severe pain, swelling, and slow-healing wounds in humans.
Let's find outNo, schizoid personality disorder does not make a person dangerous.
Let's find outScientific models are neither facts nor mere theories: they are calibrated representations that can be factually reliable in some domains and speculative in others.
Let's find outAre scorpions deadly? Mostly no. Of roughly 2,500 described scorpion species, only about 25 carry venom potent enough to kill a healthy adult, and in the United States the lone dangerous family, the bark scorpions, has not produced a…
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