Questions tagged [biology]

Biology is a natural science concerned with the study of life and living organisms, including their structure, function, growth, origin, evolution, distribution, and taxonomy. Use this tag for general biology questions, but also use more specific life science tags to accompany this one if applicable.

Filter by
Sorted by
Tagged with
58
votes
2answers
11k views

Is phosphine evidence of life on Venus?

This news article came out about evidence tied to the possibility of life on Venus. The crux of the evidence is the detection of phosphine. The claim is that we only know of two ways to make this ...
7
votes
2answers
570 views

Does synthetic vitamin C contribute to the formation of genotoxins that can lead to cancer?

While researching Vitamin C supplements, I noticed dozens of people outraged about various companies slipping in "synthetic vitamin c" (ascorbic acid). From what I can tell this aversion ...
8
votes
1answer
955 views

Are sardines farmed?

I've been trying to find out if sardines are farmed or if they are all wild and are only fished. Most of the sources I find, like this page, say that they cannot be farmed: They are not farmed, as ...
4
votes
0answers
532 views

Will bacteria grow in filtered water?

Zero Water makes water filtration systems that they claim remove 99% of total dissolved solids from water. On the Water is the New Gold blog, a water-filter scientist warns against its use: More ...
8
votes
2answers
4k views

Does it take two weeks for a single man to produce enough sperm to impregnate every fertile woman on Earth?

Fact Slides has a slide that claims: A single human male produces enough sperm in two weeks to impregnate every fertile woman on the planet. It sources a book of random facts Is it true?
3
votes
2answers
248 views

Was the yellow fever virus a past standardized biological weapon in the US Army?

Dany Shoham writes in a 2012 paper [full text, paywalled]: The yellow fever virus – a past standardized BW in the US Army, then carried by infected Aedes mosquitoes as vectors – was thus genetically ...
4
votes
2answers
574 views

Are there artificially created viruses that are both deadly like Ebola and transmissible like the common cold?

A popular YouTube personality, Dr. John Campbell, a retired nurse teacher, makes a claim in a May 4th video around the 4m27s mark: Now let's be quite clear. No-one is saying [SARS-CoV-2] is a ...
4
votes
0answers
248 views

Is there real scientific consensus linking bats to COVID-19? [closed]

I see a lot of articles in the media mentioning new bat species and adding references in the articles or the titles linking bats to coronavirus [The links in ref1 at the bottom are just some samples]. ...
0
votes
1answer
248 views

Are crocodiles more closely related to birds than lizards and snakes?

In this video Owl, The Best Pet Reptile? you can hear Clint say, Crocodiles are more closely related to birds than they are to lizards and snakes. Is this claim true?
20
votes
1answer
4k views

Does rolled sod produce 40x as much oxygen as a pine forest?

From an advertisement for turf / rolled sod by a German company: 250 m² Rollrasen produzieren etwa so viel Sauerstoff wie 10.000 m² Kiefernwald oder etwa so viel, wie eine vierköpfige Familie zum ...
9
votes
1answer
1k views

Will homemade facemasks using vacuum bag filters cause lung irritation?

In this YouTube video A Doctor Explains How to Make the Safest Face Mask, a doctor, and then his wife, talk about 'the safest' home-made face mask. (He disclaims that it has been tested, but says he ...
-1
votes
2answers
347 views

Could the COVID-19 mortality rate be way lower than we think, implying vastly more cases? [closed]

I was analyzing some of the data surrounding COVID-19, and was looking at the vastly different mortality rates (calculated as deaths / total cases * 100). While there are probably many factors ...
49
votes
1answer
13k views

Do studies show that viruses are contagious?

An acquaintance of mine has been very adamant that viruses can't be caught and continues to link me things like this Ickonic video, where Jaymie Icke interviews Dr. Andrew Kaufman M.D. who claims: I ...
1
vote
1answer
520 views

Are pomegranate seeds edible? [closed]

My dad usually eats cherry seeds, which seemed dangerous to me, so I searched it online and indeed it can be dangerous. Today, I was about to eat a pomegranate but I wasn't sure if the seeds are ...
8
votes
1answer
757 views

Is there a species of locust-eating wasp that will check its burrow repeatedly if its food is moved?

The book Do Animals Think? by Clive D. L. Wynne claims that a biologist, Jean-Henri Fabre, conducted a number of experiments on the inflexibility on wasp behaviour. In particular: One species of ...
40
votes
4answers
17k views

Can social isolation kill babies?

According to the Wikipedia page for Language Deprivation Experiments, An experiment allegedly carried out by Holy Roman Emperor Frederick II in the 13th century saw young infants raised without human ...
3
votes
0answers
103 views

Does calcification of the pineal gland negatively affect normal bodily functions? [duplicate]

I received this link from an associate of mine. It smells like pseudo-scientific bull to me, but there are a LOT of claims made in the article that I can't really debunk all by myself. To quote from ...
78
votes
1answer
12k views

Does milk make your bones stronger?

It's a common notion that milk makes bones stronger; milk contains calcium and bones contain calcium. But obviously it's not the case that calcium ingested is immediately deposited into bones. In fact,...
10
votes
1answer
714 views

Are there records of girls born with enlarged clitoris mistaken - and raised - as boys?

In a popular-science Polish magazine Focus EKSTRA, special issue 5/2004*, page 39, there's a paragraph that says (in original Polish, emphasis mine:) Jak duża może być łechtaczka? Największe bywają ...
3
votes
1answer
63k views

Will a shark kept in a fish tank have stunted growth?

There is a widely recited saying that sharks kept in fish tanks won't grow to their full size. For example, author and motivational speaker Bob Harrison posted: A shark in a fish tank will grow 8 ...
56
votes
2answers
10k views

Do predators tend to have vertical slit pupils versus horizontal for prey animals?

The picture above is taken from a Telegram channel and the text in Russian goes as follows. Prey has got a horizontally shaped pupil to better scan the horizon and a predator's pupil has a ...
11
votes
2answers
1k views

Did the chief baker of the Titanic survive two hours in ice-cold water?

In the Wikipedia page of the chief baker of the RMS Titanic, Charles Joughin, it is claimed According to his own testimony, he kept paddling and treading water for about two hours. He also admitted ...
10
votes
1answer
662 views

Does the average two-year-old pillow contain 17 different species of fungus?

In the New York City subway, I noticed a series of advertisements from a bedding company called Brooklinen. One advertisement had a surprising claim, which I found again on their website: The average ...
4
votes
0answers
257 views

Does rocking a child help their brain to grow?

Nature Play claim that a child's movement in the first two years helps them grow, specifically a rocking motion like in the womb. The link to the supposed scientific source is now dead. Is there any ...
4
votes
0answers
177 views

Does the moon have all these powers? [duplicate]

Today, I was talking with a coworker and I was surprised to see that she strongly believe that: When the moon is closer to the earth, hair grows faster. The moon influences when a woman (or person ...
10
votes
3answers
8k views

Did “hundreds of birds” fall out of the sky in the Netherlands due to a 5G test? [duplicate]

A conspiracy news site claims that (emphasis added): Hundreds of birds have fallen from the sky in The Hague, the Netherlands, during a 5G experiment to see how large the range was and whether the ...
31
votes
2answers
5k views

Does science define life as “beginning at conception”? [closed]

The following link makes such a claim https://www.princeton.edu/~prolife/articles/embryoquotes2.html The following references illustrate the fact that a new human embryo, the starting point for a ...
92
votes
2answers
15k views

Are 30% of human embryos “spontaneously aborted”?

From Richard Dawkins on Feb 1, 2019 How could I have failed to predict it? My tweet of the beautiful newt embryology film is already triggering the abortion nuts. Did you know, at least 30% of ...
13
votes
2answers
1k views

Will rats given the ability to artificially stimulate their pleasure centers starve to death?

There's a widely-held belief [example] that a rat will starve itself to death if given a lever to press that will stimulate some "pleasure center" via electrodes implanted in its brain. Supposedly, ...
4
votes
1answer
682 views

Is in vitro steak, not ground or bits, possible in the near future? [closed]

This article seems to say that it's possible to create the complex structure of a steak today. Is there any more of a reliable source that discusses the actual implementation of lab grown steak? ...
4
votes
1answer
574 views

Do lipid droplets in our skin create a laser?

The home page of Dr Jack Kruse, who claims to be a neurosurgeon and "optimal health educator" contains the following paragraph: There is a deep connection between thermodynamics in biology and the ...
4
votes
0answers
407 views

Do “Zombie bacteria” live for millions to tens-of-millions of years?

Sputnik News reports that researchers are finding a "subterranean Galapagos" including "creatures such as microbial life thriving at 121 degrees Celsius or 'zombie bacteria', which can ...
4
votes
1answer
440 views

Do Humidifiers Increase Risk of Respiratory Infections?

According to this report "Humidification should preferably use evaporative or steam humidifiers, as cool mist humidifiers can disseminate aerosols contaminated with allergens" Similarly, a NY ...
9
votes
0answers
1k views

Do fireworks kills birds, dogs and other animals?

Diwali is a Hindu festival of lights, celebrated with fireworks. My closest friend on Facebook shared this picture on my wall: Happy Diwali Thousands of birds, dogs & other animals die out of ...
25
votes
2answers
9k views

Did hundreds of birds die in a park the Netherlands? What caused it?

About a week ago at The Hague, many birds died spontaneously, falling dead in a park. You likely haven’t heard a lot about this because it seems keeping it quiet was the plan all along. However, ...
6
votes
1answer
995 views

Do spiders never stop growing during their lifetimes?

In the a recent Doctor Who episode, Arachnids in the UK, it is claimed that spiders never stop growing. Is this true?
1
vote
1answer
418 views

Is Plant-e an actual company stating a serious premise? [closed]

This is what I read beforehand and then I reached the company page. They state that plants produce energy. This happens when releasing stuff from the photosynthesis process, which is consumed by ...
12
votes
3answers
1k views

Is burning 1ha of grassland more environmentally damaging than 6000 cars?

In this video, around 10:50 Minutes, Allan Savory claims that: Now, if it does not decay biologically, it shifts to oxidation, which is a very slow process, and this smothers and kills grasses, ...
1
vote
0answers
2k views

Is it possible have a cell fusion by just injecting human sperm to an unfertilized chicken egg?

I stumbled upon these video documentation titled 'Humonculus' in Youtube (I know Youtube is not reliable source, but the video to me looks legit and well video documented) by channel named Planet ...
7
votes
2answers
659 views

Do certain fruit combinations ripen faster?

It is commonly claimed that certain fruits (e.g. apples, bananas, high-ethylene fruits and their dastardly "ripening hormone") make other fruits ripen faster. These claims appear on mainstream media ...
17
votes
2answers
10k views

Are most humans infected with parasites that water fasting can eliminate?

So this is a new one for me... I came across a jaw dropping niche of health-woo today. Apparently tens of thousands of people (if not more) believe that almost all humans are infected with parasites ...
6
votes
1answer
1k views

Is lactose intolerance an outdated diagnosis for discomfort after milk ingestion?

As a continuation of a question of most adults being lactose intolerant, the marketing of The a2 Milk Company in Australia House at SxSW 2018 suggested it may not be lactose-intolerance, after all, ...
5
votes
1answer
573 views

Are gut bacteria a cause of depression?

Media from Belgium put out a far reaching article a couple of days ago claiming Depression does not start in the brain, but in the intestines Source: "Depressie ontstaat niet in het brein, maar ...
3
votes
1answer
626 views

Does Vitamin K2 MK-4 have a half-life of about one hour?

Mercola writes MK-4 is a synthetic product, very similar to vitamin K1, and your body is capable of converting K1 into MK-4. However, MK-4 has a very short biological half-life of about one hour, ...
7
votes
1answer
768 views

Has a finger grown back with ECM?

I have seen a few variants of a claim that a man lost a finger/finger tip, and was given an Extracellular Matrix (ECM) treatment, that included a powder (usually based on pig's bladder), and the ...
10
votes
2answers
1k views

Is “Islamic fasting” healthy?

I live in a mostly Muslim country (Morocco). Now we are in the month of Ramadan. First, I had to define Ramadan: Is 30 days (or 29) where practicing Muslims can neither eat or drink or having sex, ...
4
votes
1answer
354 views

Does going to concerts increase life expectancy?

My main skepticism comes from the fact repeated exposure to loud music seems detrimental more than anything else, but I'd gladly be shown to be wrong. After a little digging, the original claim is on ...
2
votes
1answer
465 views

Has the Javan devil leaf nettle (urtica urentissima) been shown to cause any deaths?

According to Sir Stephen Tallents, writing in The Spectator, 12 March 1943: The sting of a certain Java nettle, for example, may last for a year and is reputed even to cause death. Mrs. M. Grieve, ...
7
votes
0answers
456 views

Do people become resistant to stinging nettles?

The WikiHow page How to Touch Nettles Without Stinging Yourself claims: Although experienced nettle harvesters often go bare-handed, this isn't just because they know how to avoid stings. Many of ...
1
vote
1answer
471 views

Did the Garuda Purana explain the formation of embryo and consciousness before modern science?

The Garuda Purana is an Hindu text. Here is a chapter translated in 1911. There is a widespread belief among Hindus that it accurate describes the formation of embryos and consciousness, and did so ...

1
2 3 4 5
9