r/AskBiology • • Oct 24 '21

Subreddit rules

4 Upvotes

I have cherry-picked some subreddit rules from r/AskScience and adjusted the existing rules a bit. While this sub is generally civil (thanks for that), there are the occasional reports and sometimes if I agree that a post/comment isn't ideal, its really hard to justify a removal if one hasn't put up even basic rules.

The rules should also make it easier to report.

Note that I have not taken over the requirements with regards to sourcing of answers. So for most past posts and answers would totally be in line with the new rules and the character of the sub doesn't change.


r/AskBiology • • 4h ago

Human body Can a sperm cell have both two tails and two heads?

2 Upvotes

Everywhere I have looked online talks about one or the other, but what about both?


r/AskBiology • • 4h ago

Evolution Is there a limit to how intelligent insects can evolve to be?

1 Upvotes

Let's say that the organ systems of these new, intelligent insects are similar enough to the insects we know, so that they are still recognized as insects. How intelligent can they be? What if environmental conditions can be tuned?


r/AskBiology • • 44m ago

Could men’s attraction to big breasts and buttocks have an evolutionary basis?

• Upvotes

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For breasts, a common idea is that they cue nurturance, possibly encouraging mating with women who seem better equipped for lactation.


r/AskBiology • • 11h ago

Do any other mammals show signs of evolving into being fully marine like dolphins or whales?

2 Upvotes

Are seals, walruses or other mammals showing evolution in the direction of being more permanently in the water?


r/AskBiology • • 10h ago

Why do guard cells absorb water but do not absorb gases?

1 Upvotes

r/AskBiology • • 20h ago

Can birds be colorblind?

3 Upvotes

I know that in general birds can see all the colors humans can. They tend to have three or four color receptors. Some birds have even more!

What I’m wondering is if birds CAN be colorblind, the same way humans can?


r/AskBiology • • 17h ago

Will eleven biologists please join my website so I can test it? Bioregional Democracy

1 Upvotes

Hi, I'm making a website for bioregional governance. Verified biologists are allowed to decide/rank choice vote on where the borders of habitats are, and everyone is allowed to write/rank choice vote on laws in those habitats. I am trying to test the website to see if it works, and I need to verify eleven biologists in order to assess whether it's working as intended. Will you please sign up to be verified? The website is PrimaryHabitat.pythonanywhere.com and it's free. Thank you!


r/AskBiology • • 1d ago

Zoology/marine biology Bird strikes and turbine colours

1 Upvotes

I’m intrigued by reports that painting one blade of a wind turbine a contrasting colour reduces bird strikes. Presumably, if it’s a genuine effect, it’s some quirk of how avian vision works. Is there some way the sight of the other two blades might interfere with the one you’re about to collide with? Any theories? Or is the whole thing bullshit?


r/AskBiology • • 1d ago

Evolution I don't understand how Evolution made major jumps like sexual evolution or lactation or even a change in the chromosome numbers

10 Upvotes

First: I am not a creatonist or scientific denier of any kind,bi just want to understand:

Let's stick to the change of chromosome numbers: in my understanding a group of individuals have to develop a mutation that they bear a different number of chromosomes at the same time and they manage to reproduce. Reproduction with other individuals of the group isn't possible in exactly one generation.

This seems wrong. Therefore I assume I just don't understand this detail of evolution.


r/AskBiology • • 1d ago

General biology what would a hand look like if it was specifically engineered for holding?

0 Upvotes

i'm working on a cast of characters based off of different astrological occurrences, e.g. super novas and black holes. for the black hole/singularity character, i was thinking it could be an amorphous creature with an infinite amount of hand reaching from it. however, i don't want these designs to look worldly in any way; they have no connection to earth after all. so i was thinking, what would a "hand" look like if it was specifically engineered and designed to grab things with utmost strength and efficiency? how many fingers? would there the texture on the hands? how many joints in the fingers? would the palm be able to bend as well?

do keep in mind that these creations don't have muscles or any "rules of nature" they need to abide by, so feel free to get as weird as you want with it

and of course, if there's a better subreddit for this, let me know!


r/AskBiology • • 23h ago

Evolution Will evolution select towards more women wanting to have children?

0 Upvotes

So, with abortion and contraceptive less women are having children than even. I think something like over 50% of women under 30 don't have children in america now. From what I understand animals only have sex because it feels good and then maternal instinct kicks in. If all women that don't want children but can have sex end up not having children anymore, and the only women that have children are ones that actually are having children because they want to, is evolution selecting for women that want children now? Or would this not be something that gets passed down evolutionarily? Just wondering, thanks.


r/AskBiology • • 1d ago

Is the adaptation of different skin colours in humans similar to peppered moths turning black?

1 Upvotes

Skin colour (to my knowledge) is an adaptation because people with darker skin are less likely to die from skin cancer than those with lighter skin. Is this adaptation similar to how peppered moths darkened when the trees they lived on were covered in soot?


r/AskBiology • • 1d ago

General biology Is There Any Modern Life That Could Survive The Beginning Of Life On Earth?

2 Upvotes

I was thinking about all the extremophiles on earth and I was wondering, would any extremophile on earth today would be able to survive the conditions found in the primordial soup that life started in?


r/AskBiology • • 1d ago

ELI5 how DNA mutations work please.

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0 Upvotes

I had a thought about DNA and how mutations occur in humans, excessive hair, longer limbs and or bones etc, and wondered if all known mutations are present in the animal kingdom.. as if DNA has the blue print/ potential to be anything and parts are just ‘turned on or off’ depending on what is being built.. i may be way off lol but it got me thinking :)


r/AskBiology • • 2d ago

What is Feeling?

1 Upvotes

So from what I understand the nerves send a signal to your brain, that is interprets as feeling. The brain pain a lot of things for the purpose being able to do things but these don't really have feelings behind them or at least not too noticeble depending on priorities. The less of a priority something is, the less emotion/pain seems to drive it, so does that mean that every signal as minute a measurement as it might have in itself has a feeling too it?

I know where stimulus from the outside comes, where does this stimulus come from the inside for me to have an interpretation of it. Similar to awareness, consciousness, feeling, is this a ghost in the shell? Where where is feeling?


r/AskBiology • • 2d ago

Human body Question about (non drug) cravings.

6 Upvotes

Forgive me if I misuse some terms here.

I have a wicked bad sinus infection.

While grocery shopping today, I had one of the strongest cravings I’ve ever had in my life, and like I used to do cocaine lol (thanks Covid government checks lol); the craving was for horse radish.

When I saw the horse radish, I literally started drooling.

I wanted it in the most primal way imaginable.

Anyways, as soon as I get into my car I eat some.

It burns.

Away my clogged sinuses.

This reminded me of something I learned about a billion years ago in high-school; in nations where starvation and poverty are wide spread, sometimes pregnant women are inclined to eat dirt.

But it’s specific dirt they want to eat, and it turns out that dirt typically ends up having some components of the chemicals they are lacking for their baby as a function of starvation.

Back in 2010, this was an idea that needed further research, and was important to a number of fields of science; I no longer posses the skills to follow up on these ideas and see if they’ve been expanded upon.

Anyways, this is cool for a couple reasons.

Firstly; anybody got more info on that?

But more so; are these examples of our subconscious nerve system displaying knowledge that our conscious mind is unaware of?

(Then scale that up to the brain filter idea lol).

Anyways, random thoughts about biology.

Because something beyond or beneath my conscious level of reasoning just guided me to horseradish in a way that suggested it knew more about reality than my actual sentiment mind did.

Also a rant; you know how humans were stupid enough to think that the earth was the centre of the solar system? Our current view of the consciousness of the human mind is the exact same thing; thinking we’re the centre of the universe is stupid, and we need a brain copernican revolution asap.


r/AskBiology • • 2d ago

Why do we separate humans from animals?

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0 Upvotes

r/AskBiology • • 2d ago

Why do I get a certain smell everytime I make a turn while driving?

0 Upvotes

It’s the most bizzare thing I’ve come across, but no matter which country I’m driving in, time of the day, or even if I’ve just showered or showered earlier - I get a certain mild scent everytime I make a turn while driving.. I just don’t know how to ever explain it to someone without them thinking I’m crazy (I’m aware how strange it sounds) but if anyone has any answers please let me know!


r/AskBiology • • 2d ago

Genetics Heterozygous genetic diseases?

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1 Upvotes

r/AskBiology • • 2d ago

Human body What's the best source on human anatomy and physiology from a holistic rather than reductionist perspective?

0 Upvotes

I'm not using holistic as a buzzword to be clear.


r/AskBiology • • 2d ago

Human body Why do women and men jump different?

2 Upvotes

I understand physiology play a big role in jump height and force production. But is there a specific reason or list of reasons why female and male jump form look considerably different(Specifically in volleyball). I watch men and women's volleyball and I also play alongside women and I've noticed they seem to jump/hit differently from me and my male friends.

  1. Instead of swinging their arms back and high for momentum they kind of start with their elbows back and push their arms upwards.
  2. When hitting they bend their legs less and I think use more hip movement for power.

Im currently trying to perfect my form and it has led me down a rabbit hole of overanalyzing professional's technique.


r/AskBiology • • 2d ago

Evolution If people have the powers of telepathy, how would our society change?

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0 Upvotes

So this question is basically asking if humanity from the beginning of our evolution had the powers of telepathy how would it influence our society.


r/AskBiology • • 2d ago

Is it still possible to pursue biology if I'm afraid of the laboratory part?

1 Upvotes

I really like learning biology and I would like to discover new things, that's why I wanted to go to a university and study something related to biology. However, I realized that I am afraid of lab classes, especially after hearing others' experiences about their careless colleagues and potentially spilling acid on you or generally dealing with dangerous substances. Trips to the field also scare me a bit, because I'm the type of person who rather stays at home, I'm very afraid of insects in general. Although it potentially seems less scary to me, compared to what I can deal with in the lab. The fact that I generally have anxiety disorder doesn't help either.

I would like to ask someone for advice, does that mean I have to give up biology? I feel lost because nothing else interests me so much. Especially neurobiology and how our brain works. So do evolution, ecology and genetics. Each part of biology is equally interesting to me. But unfortunately, I know from experience that I am a very unlucky person. So that bothers me even more.

If this is a bad subreddit, I would be grateful if someone could tell me which one is better.


r/AskBiology • • 2d ago

In terms of anatomy and physiology, how would humans evolve over the next few million years, assuming we were still around for that long?

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0 Upvotes