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Almost all frogs lay eggs, and most of those eggs are fertilized outside the body. A small minority of species give birth to live young, and a handful do something in between. So the answer depends on species, not on frogs as a group.
Read the story ↗Yes, most fireworks contain gunpowder, though usually not in the form you would recognize.
Colon cancer liver metastasis happens when cancer cells from the colon or rectum travel through the portal vein and implant in the liver, where they grow into one or more secondary tumors.
Compression socks do not treat sciatica. Sciatica is nerve pain produced by irritation or compression of the sciatic nerve or its lumbar roots, and a sock wrapped around the calf cannot decompress a nerve at the spine or deep in the…
You may need crutches if putting weight on the injured leg is painful, unstable, or prohibited by your clinician. The decision is usually about load, not damage: crutches are a tool for keeping force below what healing tissue can tolerate.
Yes, deer warts (cutaneous fibromas) usually do go away on their own. Most lesions regress within 1 to 6 months as the deer's immune system recognizes the papillomavirus and mounts a cell-mediated response.
A dent in your rib cage is usually a normal variation in chest wall shape, not a hole in bone.
Do antipsychotics increase the risk of dementia? The short answer is that they do not appear to cause the underlying neurodegenerative disease, but they are consistently linked to higher rates of dementia diagnosis and faster cognitive…
Yes, most athletes need more vitamin D than they currently get, but not for the reasons marketing suggests.
No, bot flies do not typically kill squirrels. A squirrel with a bot fly infestation usually survives, because the parasite's survival depends on keeping its host alive long enough to complete development.
Yes, banana trees (Musa and Ensete species) need full sun for most of the day, typically six to eight hours of direct light, to grow vigorously and fruit well.
Yes, on average boys do mature slower than girls, but the gap is narrower and more specific than the popular claim suggests.
No. Not all rattlesnakes have rattles. Every species in the genus Crotalus and the genus Sistrurus is born with the anatomical capacity to form a rattle, but individual snakes can lack one because of a lost tail tip, a retained first…
Yes, American cockroaches can fly, but they rarely do. Both adult males and females have fully developed wings, yet flight is an emergency response rather than routine travel.
Yes, Europeans live longer on average than Americans. As of the most recent complete period, life expectancy at birth in the European Union was roughly 81 years, while in the United States it was about 78 years.
Emotional tears do not reliably release stress hormones into the bloodstream.
Yes, men get diastasis recti. It is not a women-only condition, though it is far more common in pregnancy and postpartum.
Yes, cats react to music, but not to most of what humans play.
No, inhalers do not boost athletic performance in people with healthy lungs.
Yes, some infected cysts heal on their own. A small, superficial cyst with expanding redness under about 1 centimeter can drain, clean itself, and resolve without treatment. Larger, deep, or fast-spreading infections usually will not.
Clindamycin and ciprofloxacin are not interchangeable and are rarely a paired choice. Clindamycin is a lincosamide that blocks bacterial protein synthesis and is a workhorse against gram-positive cocci and anaerobes.
Lupini beans can support weight loss, but only indirectly: their high protein and fiber load raises satiety, blunts post-meal glucose swings, and displaces more energy-dense foods.
Yes, but capture is not the same as elimination. High-efficiency particulate air (HEPA) filters physically trap the overwhelming majority of airborne virus particles that pass through them, because the viruses travel inside respiratory…
Cortisol vs. adrenaline describes two hormones with separate jobs: adrenaline (epinephrine) triggers rapid, short-lived physical responses measured in seconds to minutes, while cortisol is a slower steroid that reshapes metabolism and…
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