r/biology 3h ago

question Prior to puberty, are there physical differences between boys and girls (apart from their genitals) or are they completely, even their physical appearances, identical?

0 Upvotes

I recently learned that puberty changes your skeletal structure and am thusly curious.


r/biology 21h ago

discussion How to know if a margarine has trans fat?

0 Upvotes

Margarine is promoted as a healthier alternative to butter as it contains polyunsaturated fat instead of saturated fat. Furthermore it also contains plant sterols, which compete with cholesterol for absorption across the intestinal cell membrane, leading to reduced cholesterol uptake, thereby improving cardiovascular health.

However, there has been a concern about trans fats in margarine for the past few years, and since then the manufacturers have made an effort to remove trans fat from them. But how do I know if there isn't any trans fat? Sure, the manufacturers do provide nutritional information which details any information about trans fat. But how credible are they?


r/biology 2h ago

discussion Why does nature care about survival at all? What—aside from reproduction—does nature imply about our existence?

0 Upvotes

Hey everyone!

So, I’ve been thinking—religions have tried to explain the purpose of life, the world, the universe… and honestly, they've failed pretty terribly in doing so (in my opinion). But that still leaves the question: what is our purpose, if any?

Why does nature seem to “want” us to survive and reproduce? Why is life—even in the smallest forms—so obsessed with hanging on?

I recently came across this wild little microorganism called a tardigrade. This tiny thing can survive extreme radiation, the vacuum of space, insane heat and cold… basically, it's nature’s own indestructible tank. Like, what the actual hell—why does such a creature even exist? What’s the point?

Is nature just trying to ensure life spreads across the universe? Are we supposed to become space explorers? Or is everything just flowing without any real direction? But then again—what is that flow? Where did it come from? Who or what decided the “rules” that life must adapt, compete, evolve, and persist?

Sometimes I wonder—maybe there's no purpose at all. Maybe we just happen to exist. But even if it's meaningless, why does it feel so intentional sometimes?

Would love to hear your thoughts. Do you see any “purpose” in nature’s madness? Or is it just chaos pretending to be order?


r/biology 15h ago

question Anything I missed ?

Post image
0 Upvotes

Human comprisement


r/biology 15h ago

question Why are carbs considered bad?

35 Upvotes

There has been an uprise of people commenting, that one should avoid all carbs and just eat fats and protein. Vut does the human body not require fiber, vitamins and other essential nutrients? Also if you were to avoid earing carbs, isn't sugar also just a carb? And I don't think eating meat all day is healthier than eating a piece of avocado on brown bread


r/biology 13h ago

academic Looking for Bat Colonies in MD– University Research on Behavior and Aging

1 Upvotes

Hi everyone! Our research lab at the University of Maryland is conducting a study on bat behavior and aging, and we’re looking for known bat roosts or colonies across the state or neighboring areas. Whether it's bats in barns, attics, trees, caves, or anywhere else—any information would be greatly appreciated, even if you’re unsure of the species.

We're primarily studying big brown bats, but we’re open to hearing about any bat sightings or colonies.

Important Info:

We are fully permitted and operate under strict ethical standards

All procedures are non-lethal and minimally invasive

We collect only a 4 mm wing punch (to determine age) and a small blood sample (to assess cellular health)

We do not harm or kill any animals—our goal is to promote their conservation and well-being

If you’ve seen bats regularly in your area or know of any colonies, please comment or send me a DM. Thanks so much for supporting bat conservation and science!


r/biology 9h ago

Careers What jobs can I get with a degree in Biological Sciences?

8 Upvotes

As the title states, I'm a first year student at a good university that's soon going to be in biological sciences [most likely will be kicked from biomedical science]

I like helping people and fixing their problems for them, but I'm not too sure what jobs I should go for that suit that category

My family largely pushed me to go down the chiropodist/podiatry path like my brother, but I'm starting to feel like I'm lacking in the grades field for that

I'm in Canada if that helps anyone


r/biology 20h ago

question Could it be possible to use GMO Fungi as an artificial organ for humans

9 Upvotes

Basically create a organism, doesn't have to be a fungus really, could be anything, that is seperate but operates by taking nutrients from a host organism like a parasite, but produces a key nutrients someone is lacking, IE insulin, estrogen, ect as a byproduct of it being alive.

or even on another note, using fungi as a electric bridge for signals in the spine of patients with spinal injuries. or even to add extra space or preprogramed information that can directly "plugged in" into someone brain, like inserting a disk into a computer.


r/biology 17h ago

question Is molecular biology mostly procedural?

6 Upvotes

Hello, I am about to graduate with a degree in biomedical science and I am interested in molecular biology and computational biology. The thing is I like conceptual thinking and creativity and dislike repetitive work, procedures and troubleshooting. Would computational biology be better for me?


r/biology 23h ago

question How much chemistry knowledge do I need?

0 Upvotes

Hi, I'm want to study biology, so I was asking myself how much chemistry do I need to study biology? Thanks on advance


r/biology 16h ago

question How would a specialized organism utilize metabolic/respiratory processes to produce tungsten?

1 Upvotes

Thought of the scaly footed gastropod and thought, "what if tungsten instead of iron?"


r/biology 5h ago

question What's the first signal in voluntary movement?

2 Upvotes

For example,when i voluntarily contract a muscle,what is the absolute first physiological occurrence? And when we answer that,wouldn't it has to have something that cuases it?and so on and so forth? How is this gap solved?is it unknown? (My gpt couldn't answer)


r/biology 16h ago

article Why Do Birds Put Snakeskin in Nests? It May Warn Away Predators

Thumbnail allaboutbirds.org
4 Upvotes

r/biology 15h ago

discussion Women are fertile one day a month

959 Upvotes

There was a post earlier today that got deleted asking why is it that women are only fertile once a month, and I noticed it had collected half a dozen or so comments all with false information claiming women are always fertile.

Let’s improve our sex education:

A woman is only fertile while she’s ovulating, which is a process that takes 12-24hrs and happens once a cycle/month. When I last checked the studies maybe six years ago, it was noted that sperm remained viable in the vagina about 3 days, sometimes up to 5.

Women are not fertile every day they’re not menstruating. The “fertility window” refers to the window of time between sperm hanging out and an egg being ready — not a window of time where a woman happens to be ‘more’ fertile than every other day where she’s ‘less’ so.

This is FAMs (fertility awareness methods) are based on / how they work.


r/biology 11h ago

question What is going on in this video? What type of cell is the cancer cell, and how does the T cell move? Do they have some kind of movement mechanism? I thought they only move through the bloodstream and bump into foreign cells by chance."

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139 Upvotes

r/biology 20h ago

question What are those things swimming?

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225 Upvotes

Someone said they're tadpoles, others said their mosquito larvae. Does anyone know what they are and why they're swimming like that?


r/biology 17h ago

question Which animals are affectionate during/after mating?

18 Upvotes

Just saw two pigeons getting it on on my windowsill. They were so sweet afterwards. They stood leaning on each other for a while and then took turns preening each other's neck and head feathers. I also know that intercourse is sth that the females of some species such as ducks or cats try to avoid and escape at all costs, so this scene made me genuinely curious: which species display affectionate and/or caring behavior right before, during or after mating? Are those also species that mate for life? Or are there also non-bonding animals who display this sort of behavior? (I understand that there will be exceptions to every rule, I'm asking about what is considered typical/default, unless you wanna tell me of a notable exception as trivia, which is also cool.)


r/biology 22h ago

video I made an app to keep your research in one place

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51 Upvotes

Hey all, I made this app that helps you keep your information organised together, no matter the platform. I hope it has some use for you guys! Made it completely free to use, so do check it out if you're interested. I made a quick demo on youtube that now has 1000 views which is pretty cool, and also the App Store link is here for you to download! Feel free to ask any questions!


r/biology 35m ago

question did our nostrils evolve to have the radius of our fingers

Upvotes

Was picking my nose. Started thinking about it.


r/biology 2h ago

question Can you feel a difference in an adrenaline rush in different situations?

2 Upvotes

So the title basically, like is there a difference between playing in a high intensity sport like football compared to "oh theirs a giant werewolf right there about to attack me" will the difference between the two scenarios cause a significant difference in the adrenaline rush to be felt? Or can you not really tell the difference?


r/biology 9h ago

question Looking for pdfs of all of spemann and mangolds papers

2 Upvotes

I am writing a review paper and in relation to that i am looking for pdfs of the spemann and mangolds papers concerning the primary organizer especially ones from 1915 to 1940.

I have tried sci hub but no luck on any paper except the 1924 paper. Any ideas where i might find them?