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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.

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Does natural corn grow giant?

I was reading the Wikipedia article on corn today, and I noticed this interesting quote in the second paragraph: While natural maize varieties grow to 12 metres (39 ft) tall, most commercially ...
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1answer
490 views

Does “power posing” affect testosterone and cortisol levels?

Social psychologist Amy Cuddy gave a TED talk in which she claims that adopting certain postures: can affect testosterone and cortisol levels in the brain. Business Insider Australia summarised it ...
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Is this image of eye colour inheritance accurate?

This image is circulating on social media (e.g. Pinterest). It implies that if you have green eyes, then you can't possibly have one biological parent with blue eyes and the other with brown. The ...
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1answer
7k views

Did the BBC fake scenes in Planet Earth 2 with composite shots and CGI?

This YouTube video with over 100,000 views makes the claim that the BBC faked the iguana-snake chase scene in its recent documentary, Planet Earth 2. It makes the claim that the bundle of snakes was ...
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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:...
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Did a NASA study show that arsenic-based bacteria are possible?

A while ago a NASA funded study claimed that they could get bacteria to incorporate arsenic into their DNA. Life forms based on different elements than life on earth have been speculated about in ...
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1answer
2k views

Do bananas last 3 to 5 days longer if you wrap plastic around their stem?

SweetFunnyCool : Here is a simple and easy way to make your bananas last longer. All you have to do is wrap plastic around the stem. Banana stems release ethylene which causes ripening and by blocking ...
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1answer
710 views

Do pain killers “target” pain?

Everyday I hear advertisements that some painkiller directly targets the pain. e.g. Nurofen's UK web-site Targets pain fast. [...] Targets pain twice as fast as standard ibuprofen ...
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2answers
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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, ...
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2answers
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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 ...
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1answer
8k views

Do colour-blind people see through certain kinds of camouflage?

I found this claim in Unweaving the Rainbow by Richard Dawkins. This is the Google Books link to the relevant page. Nobody knows whether or how this benefits them, but it may be suggestive that ...
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Do we know why animals have evolved to have sex for reproduction?

I've been reading 13 Things That Don't Make Sense: The Most Intriguing Scientific Mysteries of Our Time (2010) and Chapter 10 concentrates on the subject of Sex. The author argues that we do not know ...
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Plants that release oxygen even at night

It is widely reported at several places that certain trees such as Peepal (Botanical name:Ficus religiosa) and Tulsi (Botanical name: Ocimum tenuiflorum) release oxygen even at night. My understanding ...
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2answers
996 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, ...
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4answers
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Do we lose most of our body heat through our heads?

If you didn't grow up in a tropical climate, you probably heard something like this as a child... Put on a hat before you go out because you lose the most heat through your head. Some say that ...
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1answer
492 views

Is in vitro steak, not ground or bits, possible in 2018?

This article seems to say that it's possible to create the complex structure of a steak today. Is there any more reliable source that discusses the actual implementation of lab grown steak? Ground or ...
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1answer
528 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 ...
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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 reproduce or ...
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3answers
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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, ...
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Is this Indian Man, Mûrasi, 179 years old?

This guy claims that he is 179 years old. Is this true? Sources: eface India News Origin World News Daily Report
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1answer
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Is this Indonesian man, Mbah Gotho, 145 years old, as he claims?

Apparently a person in Indonesia is claiming he is 145 years old. The world’s oldest man has been named as Indonesian Mbah Gotho, who is 145 years old, with documentation that says he was born in ...
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Is rice water a good fertilizer?

When rice is washed, the wash water becomes whitish due to the starchy powder in the skin of unwashed rice. I've often heard or read, usually in water-saving, money-saving, or gardening tips, that the ...
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2answers
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Do pathogens have a negative ORP and beneficial bacteria a positive?

As claimed on page 33 of this MMS book: All pathogens (poison producers) have a negative ORP. All beneficial bacteria have a positive ORP. In other words: The beneficial bacteria are ...
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1answer
356 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 ...
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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 ...
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4answers
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Do hand dryers in public bathrooms spread bacteria?

A hand drier is a warm and humid environment that is surrounded by bacteria from all the bathroom users. It is claimed that this is one of the main causes for spreading bacteria/microbes (NCBI ref) ...
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1answer
743 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?
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1answer
407 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 ...
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1answer
6k views

Can vinegar and essential oils repel ticks?

I just saw this facebook post claiming that vinegar and essential oils can repel ticks. In a spray bottle, mix 2 cups of distilled white vinegar and 1 cup of water. To make a scented solution so ...
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1answer
3k views

Does the oral contraceptive pill “age” a woman's cervix prematurely?

Well, I heard an interesting one tonight. My wife passed on that on a blog discussing contraceptive use, someone posted a link to a site stating that taking Ortho Tri Cyclen, an oral contraceptive, "...
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3answers
3k views

Has any cure come from embryonic stem cells?

The claim is made here that none have. Of the 80 treatments and cures which have come about from stem cells, all have come from adult stem cells – not embryonic ones.
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1answer
8k views

During pregnancy, do babies send stem cells to their mothers to repair organ damage?

This picture is floating around the facebooks with no attribution to an original source (not even a source of the image): The image says: During pregnancy, if a mother suffers organ damage, the ...
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3answers
25k views

Is this picture showing an eagle flying upside-down genuine?

I found this picture on Facebook: It definitely doesn't come from a particularly credible source (I F***ing Love Science), but I'm curious if that picture is genuine. My mother claims that the legs,...
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1answer
17k views

Was superglue invented to seal bullet injuries in Vietnam?

I cut myself recently and used superglue to seal the wound. I thought it was normal but when I tell people that act like I'm crazy. Then I tell them this story: Superglue was invented during the ...
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2answers
592 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 ...
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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 ...
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2answers
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Did David Blaine hold his breath for 17 minutes?

David Blaine (born David Blaine White; April 4, 1973) is an American magician, illusionist and endurance artist. He is best known for his high-profile feats of endurance, and has made his name as a ...
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4answers
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Fasting for 40 days - is it possible?

According to Deuteronomy 9:9, Moses did not eat or drink anything for 40 days. When I was gone up into the mount to receive the tables of stone, even the tables of the covenant which the LORD ...
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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 ...
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2answers
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Do the trees follow Fibonacci series? How?

Does the number of leaves on a branch follow Fibonacci numbers from top to bottom? Or is there more to nature than I really see it. This question came up after reading this article: Aidan Dwyer ...
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1answer
2k views

Are pigs man-eaters?

This BBC news article reports that a farmer was eaten by his pig: Authorities are investigating how a farmer in the US state of Oregon was devoured by his pigs. Terry Vance Garner, 69, went to ...
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3answers
24k 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 ...
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1answer
423 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, ...
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271 views

Is lactose intolerance an outdated diagnosis for discomfort after milk?

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, ...
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1answer
521 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 in ...
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2answers
12k views

Is cows' milk bad for cats?

My mother used to tell me that I shouldn't give our kitten cow milk, even if she seemed to enjoy it. Since I loved my kitten, and was quite disobedient at that time, I did it fairly often, and never ...
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1answer
668 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 ...
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1answer
493 views

Does fluoridation and chlorination in the US cause thyroid issues?

From an answer in Travel.SE with a net score of 10: Mains water is typically laced with chlorine and fluoride by law, to the point that you step out of the shower smelling [like] you just stepped ...
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0answers
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Does chlorine in water harm soil bacteria?

This article claims that both chlorine, and chloramine, which are added to many municipal water supplies to kill harmful bacteria, can also harm the good bacteria in soil, necessary for a healthy ...
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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, ...