ScienceFriendly introductions to questions from across science. Start with something familiar, discover the explanation, and keep exploring.
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The pig brain is a gyrencephalic, roughly 180-gram organ built on the same mammalian plan as the human brain: a folded cerebral cortex, a prominent cerebellum, a hippocampus, and a limbic core of amygdala and hypothalamus.
Read the story ↗Yes, lemurs are among the most endangered groups of mammals on Earth.
Let's find outAre hornworms poisonous? The short answer is yes, but only if the caterpillar has been eating the right plant, and the poison is not what most people fear.
Let's find outYes, asylums in the historic sense (large, isolated, long-term custodial institutions that warehouse people with mental illness) are no longer used in the United States and most of the developed world.
Let's find outYes, cherries are plausibly good for gout, but as a modest adjunct rather than a treatment.
Let's find outYes, headaches are normal. Having an occasional headache is a near-universal human experience: roughly half of adults worldwide report at least one headache in any given year, and about 9 in 10 people will have one at some point in their…
Let's find outCold sores are caused by herpes simplex virus type 1 (HSV-1), not by human papillomavirus (HPV).
Let's find outApricots are supposed to be sweet, with a measured tart edge, not sharply sour.
Let's find outYes, artichokes are generally good for gout: they are a low-purine vegetable at roughly 20 to 50 mg of purines per 100 g, well under the 100 to 200 mg per 100 g range that defines high-purine foods, and the globe artichoke's edible portion…
Let's find outYes, some asters are edible, but the answer depends entirely on the species. The genus Aster and its close relatives include plants eaten as food and plants that should never reach a plate.
Let's find outYes, grapes are good for most diabetics when eaten in controlled portions, because their fiber, polyphenols, and water content lower the real-world blood sugar impact compared with what their sugar content suggests.
Let's find outAlcohol test strips are accurate only for detecting alcohol's presence in a liquid sample at or above their labeled cutoff, and they are not accurate for estimating blood alcohol concentration, judging impairment, or reliably clearing a…
Let's find outYes, essential oils are natural in the strict sense that they are extracted from plant material rather than synthesized from petroleum feedstocks. But "natural" is a marketing word, not a safety or purity standard. The U.S.
Let's find outAquaphor can relieve psoriasis itching, scaling, and cracking, but it does not treat the underlying inflammation.
Let's find outCoconut allergy is uncommon but not rare. Population surveys place true immunoglobulin E (IgE)-mediated coconut allergy at roughly 0.1 to 0.5 percent of adults and children in Western countries, and published case series remain small…
Let's find outYes, humans are still evolving today, and the evidence is measurable in real time. Natural selection has not stopped; it has changed direction and speed.
Let's find outHazel eyes are neither simply dominant nor simply recessive. The trait is polygenic, meaning at least 16 genes shape iris color, and hazel sits on a continuous spectrum rather than in a two-box dominant-recessive system.
Let's find outAlates are not dangerous to humans in any direct sense: they do not bite, sting, transmit disease, or carry venom, and no species of winged termite or winged ant poses a physical threat to people or pets.
Let's find outArmy worms are not harmful to humans in the way people fear: they do not bite, sting, inject venom, or burrow into skin, and no armyworm species is a human parasite. The genuine human harms are indirect and specific.
Let's find outYes, chromosomes are present in cells during interphase, but they do not look like the compact X-shaped structures seen in textbook diagrams.
Let's find outIt depends entirely on which classification system you use, and that ambiguity trips up almost every consumer looking for a straight answer.
Let's find outHemorrhoids are both: anal cushions are a normal, universal anatomical structure present from birth, but the term "hemorrhoids" in medicine means those cushions have become symptomatic — enlarged, engorged, or prolapsed.
Let's find outYes, small blood clots in the urine are normal for the first 2 to 3 weeks after prostate surgery, and they are expected rather than alarming.
Let's find outYes, bur oak acorns are edible, but only after processing, because raw acorns of bur oak (Quercus macrocarpa) carry bitter tannins that can reach 6 to 10 percent of dry weight in unripe or unshelled nuts and cause digestive upset and…
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