Biology
Exploring "Why" questions about Biology
482 articles
Why do some species (e.g. salmon) die after mating once?
Would you want to keep living after you had sex with a salmon? It's so they don't have to live with the shame.
Why do some fermented drinks need yeast, and some other drinks need yeast and bacteria (scoby)?
Fermentation with yeast and without bacteria is alcoholic fermentation, with bacteria lacto fermentation. Kombucha (scoby) isn't intended to be an alcoholic drink, although it does contain some alcoho
Why are computer generated visuals way more advanced than sounds/voices?
When you know exactly what is going to be said it makes a million times more sense to just have someone read it off the page. Siri and other "computer voices" need to make words and sentences out of w
Why are the medical and dental communities kept so separate? Shouldn’t dental be part of general well-being?
There was a decent thread on this a few months back, it might have some answers you're looking for: _URL_0_
Why are there still so many homosexuals if the majority of homosexuals don’t reproduce to pass on their genes? Shouldn’t natural selection and evolution be curbing this from happening? (Note: I am …
Natural selection selects in favour for homosexuality if one homosexual sibling makes the other siblings fitter. Natural selection selects in favour for homosexuality if the dangers of a larger popula
Why does adding more cameras increase noise cancellation?
Did you mean "adding more microphones increase noise cancellation" in your title? Yes, multiple mics can reduce noise. And your suspicion that they can "focus" on your voice *is* in the ballpark.
Why does so many peoples leg bounce up and down while sitting? And why are they generally all at the same tempo?
Aside from it being a way of dealing with anxiety and stress, it also helps the blood flow on your legs.
Why do people think Apple is revolutionary?
I don't think most people do??? I'm an Apple fan. I have an iPhone, an iPad, and I'm typing this on a MacBook Pro.
Why do cell phone signals deteriorate in mountainous areas?
Firstly, there is a misconception that our phone's signals go to a tower and are transferred to a satellite which are then collected by another tower and then back to the receiver's phone. Nope. The t
Why aren’t there good viruses?
It could be argued that virii [aren't life at all](_URL_1_). I think the best explanation is this. A bacteria, like any other animal, can make copies of itself without necessarily having to hurt anyth