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
31 votes
2 answers
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 ...
user avatar
94 votes
2 answers
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 ...
user avatar
13 votes
2 answers
2k 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, ...
user avatar
  • 239
4 votes
1 answer
688 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? ...
user avatar
  • 1,276
4 votes
1 answer
769 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 ...
user avatar
  • 54.7k
4 votes
0 answers
415 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 ...
user avatar
4 votes
1 answer
475 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 ...
user avatar
  • 541
9 votes
0 answers
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 ...
user avatar
25 votes
2 answers
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, ...
user avatar
  • 465
6 votes
1 answer
1k 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?
user avatar
  • 223
1 vote
1 answer
442 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 ...
user avatar
15 votes
4 answers
2k 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, ...
user avatar
1 vote
0 answers
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 ...
user avatar
7 votes
2 answers
695 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 ...
user avatar
  • 77.9k
18 votes
2 answers
15k 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 ...
user avatar
6 votes
1 answer
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, ...
user avatar
  • 804
5 votes
1 answer
598 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 ...
user avatar
  • 4,003
3 votes
1 answer
837 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, ...
user avatar
  • 32.4k
7 votes
1 answer
1k 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 ...
user avatar
  • 173
11 votes
2 answers
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, ...
user avatar
  • 1,236
4 votes
1 answer
367 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 ...
user avatar
2 votes
1 answer
532 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, ...
user avatar
  • 17.5k
7 votes
0 answers
569 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 ...
user avatar
  • 171
1 vote
1 answer
607 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 ...
user avatar
  • 889
8 votes
1 answer
2k views

Did Donald Trump say that the law allowing a baby to be born from his or her mother's womb in the 9th month is wrong?

2 days ago, Twitter user Todd Dracula shared a video from a Donald Trump speech, which can be found at https://twitter.com/ToddDracula/status/954410865993879558. In it, the President appears to claim:...
user avatar
  • 1,737
3 votes
1 answer
928 views

Does eating chicken during pregnancy make your baby's penis small?

According to Eating chicken may lead to a smaller penis: to protect their sons’ normal development, pregnant women may be wise to avoid poultry Is any of this true?
user avatar
50 votes
3 answers
26k views

Russian scientist injects himself with 3.5 million-year-old bacteria, says he is now stronger and hasn't gotten ill in 2 years

I have found several articles regarding a Russian scientist, Anatoli Brouchkov: Anatoli Brouchkov is a soft-spoken guy with silver hair, and when he lets out a reserved chuckle, his eyes light up ...
user avatar
  • 995
5 votes
0 answers
549 views

Does watering plants with purified water yield better results?

I watched a commercial for the Aquaguard Enhance RO+UV water purifier recently. In that commercial, a science teacher assigns an experiment to students. The students bringing a plant to school, and ...
user avatar
  • 229
20 votes
1 answer
15k views

Did a boy die after masturbating 42 times?

Some years ago, there were reports being over social networks and blogs that "a boy died after masturbating 42 times in a row". For example: M24 Digital: A 16-year-old boy died after masturbating ...
user avatar
7 votes
3 answers
1k views

Does too much sex, or STDs, cause urination after sneezing?

From Billy Baldwin (verified user, 109 RTs, 805 likes, Wikipedia biography), referring to Jenna Jameson, who used to be a porn star: Curious to know what might've caused that sneeze-pee condition ...
user avatar
  • 38.4k
4 votes
2 answers
953 views

Do colder temperatures increase our hunger?

I've heard this multiple times as an explanation to eating more in relation to being exposed to colder temperatures (restaurants that are colder, during the winter, etc.) but I have yet to be able to ...
user avatar
  • 151
4 votes
1 answer
2k views

Are there more trees in America today than there were during colonial times?

Yesterday, one of my Facebook friends posted an article defending trophy hunting of elephants in Africa. This led to a discussion about hunting reservations in the US, and ultimately to my friend ...
user avatar
7 votes
1 answer
841 views

Does it take 30 seconds for a person to consciously realize that they're awake?

Source: "You actually have to be awake for a full 30 seconds to consciously realize that you are awake, but the body falls right back into sleep immediately after it wakes up to take a breath," ...
user avatar
  • 327
2 votes
1 answer
454 views

Is climate change causing jellyfish to wash up on the beach?

The following article Thousands of Venomous Portuguese Man O’ Wars Wash Ashore in Australia: ‘It Was the Stuff Of Nightmares’ details an event where a large number of a jellyfish creatures washed up ...
user avatar
  • 10.4k
13 votes
1 answer
569 views

Are species becoming extinct at a rate of 0.01%-0.1% per annum?

The World Wide Fund for Nature warns that there is, in fact, a very serious biodiversity crisis. And illustrates this with an unreferenced "scientific analysis" These experts calculate that ...
user avatar
5 votes
1 answer
989 views

Can someone survive being swallowed by a whale?

This site claims that a man was swallowed by a whale for three days and survived. His name is Luihi Marquez and is Spanish. Upon searching, it seems that multiple news sites have covered this ...
user avatar
  • 560
12 votes
0 answers
926 views

Wim Hof immune response techniques

Wim Hof practices several techniques which he claims lead to voluntarily influencing the immune system resulting in increased resistance to toxins and the cold. The techniques are categorised into ...
user avatar
  • 221
28 votes
1 answer
2k views

Is there a point of no return when starving to death?

I was looking at this image on Wikipedia of two children during the Russian famine of 1921-1922. The caption reads (my translation): Famine in Russia. III. The two stages of hunger: the skeletal ...
user avatar
  • 508
2 votes
0 answers
253 views

Smell of a Body [closed]

There's many fictional and nonfictional stories about passerby detecting dead bodies inside buildings and such by an "overwhelming stench of decay" or something equivalent, usually even through thick ...
user avatar
28 votes
2 answers
4k views

Do biological males who were castrated at birth and raised as females often behave like stereotypical men?

In "Google's Ideological Echo Chamber", James Damore wrote (emphasis added on claim): On average, men and women biologically differ in many ways. These differences aren’t just socially ...
user avatar
14 votes
1 answer
543 views

Was Jan Dzierżoń harassed for his work on parthenogenesis?

Rev. Jan Dzierżoń was a roman-catholic priest from Silesia, that did some important contributions to biology and beekeeping with his research. I.a. he is crediting with the discovery, that drones are ...
user avatar
  • 323
8 votes
1 answer
5k views

Do Ultra-violet LEDs on air hand dryers help to kill bacteria? [closed]

I've noticed newer air hand dryers sometimes have blueish LEDs on the bottom that shine light on your hands when you're drying them. One theory I've heard is that the UV light emitted by these LEDs ...
user avatar
6 votes
0 answers
368 views

Ancestry tracking DNA tests

Since the advent of cheap DNA tests, several companies have sprung up which will tell you ancestral origins according to your DNA. 23andMe claims, Where in the world are you from? Find out where your ...
user avatar
1 vote
0 answers
178 views

Is the microorganism buildup in bedsheets harmful?

According to business insider, the New York University microbiologist Philip Tierno claims that bedsheets should be washed once a week and that mattresses should be changed more frequently because ...
user avatar
  • 475
4 votes
0 answers
914 views

Has anyone used yoga to live for supernatural lengths of time?

According to this commentary on the Bhagavata Purana by Swami Prabhupada: By controlling the breath, the perfect yogī can continue his life for as long as he likes. Sometimes we hear from the Vedic ...
user avatar
2 votes
2 answers
352 views

Does radiation sensitivity decrease with age? [closed]

Just after 3:23 in this TED Radio Hour segment, featured guest Holly Morris makes the claim that "the older you are, the less detrimental the effects of radiation is." The context is in why ...
user avatar
  • 329
6 votes
1 answer
603 views

Do some GMO plants provide bigger yields and more efficient use of land?

I was told that some Genetically Modified Organisms (GMOs) provide bigger crop yields and a more efficient use of land compared to unmodified crops. Monsanto claim: These [GMO] seeds grow into ...
user avatar
5 votes
0 answers
365 views

Does area of the brain associated with the sense of self "shut down" when praying?

Is there any study done on the claim that the area of the brain associated with the sense of self "shuts down" when praying? In the NBC News article "What Happens to Your Brain When You Pray?", ...
user avatar
  • 3,164
60 votes
1 answer
8k views

Do teenagers fall asleep and rise up later than kids or adults for biological reasons?

In a TED talk "Why school should start later for teens", Wendy Toxel made an assertion that teenagers naturally fall asleep and rise up a couple of hours later than children OR adults (related to ...
user avatar
  • 31.1k
4 votes
0 answers
213 views

Can Bioimpedance be used to prescribe essential oils and supplements?

Bioimpedance (or Bioelectrical impedance analysis) has been used to measure body fat. However, there are products that claim to link the bioimpedance results to essential oils and supplements: this ...
user avatar

1
2
3 4 5
10