My Cousin had a set of twins last year. One boy one girl.

Conceived via ivf techniques.

Kid A : looks like a model, started walking at 9 months, started speaking early, playing and all the standard development things, plays with dogs and not scared at all(both parents are extremely terrified of dogs) my brother was chased by 3 dogs and bit as a child and traumatized to this day as a grown ass adult.

Kid B : child glasses, extremly slow development, delayed speaking,walking,could not crawl till 7 months in extremely Scared of dogs(just like the father and mother), bad skin. Not the cutest baby out there.lowkey ugly, and quite ugly by asian standards Short stature, weak.

Dads side everyone looks like a model but everyone has thick glasses and eye issues. Everyone is tall. Moms side people are short but again look good, no glasses no genetic issues.

Its like kid B got all the terrible traits from both sides.

Both parents look good, the dad look like a model,Tall, wide, runs marathos, his wife too looks decent.

Its as if Kid B got all the terrible things from both set of parents. Whereas Kid A got all the good genetics.

I often hear people say that the distinction between chromosomes and chromatids is that chromosomes consist of a pair of sister chromatids. But sometimes a chromosome may exist as a single chromatid, as is the the case with homologous chromosomes before DNA replication. If a homologous chromosome exists as a single chromatid before DNA replication, and a chromosome and chromatid are distinct entities, why is it called a chromosome and not a chromatid? Would it not make more sense to called it a homologous chromatid until DNA replication occurs and sister chromatids are present?

A buddy of mine said people that work out every day going to the Gym and going for runs and being athletic build have stronger heart and lung function.

He said also when they get sick it does not last as long and you coughing way less than someone really fat and extremely out of shape.

Why is that?

Why would we be punished twice?

What would happen? Serious question, I am dying to know.

It's easy: whenever I eat foods that are too salty, I cough. It doesn't matter if I drink or follow any advice I read online; it always happens.

To be precise, I wanted to test this strange thing and tried to debunk the only explanation I found online that states, "you cough because of your throat's sensitive membrane." So, I tried eating two grains of salt, and it made me cough after 3/4 seconds it touched my tongue. From my experience, I can say that the throat is not involved in this issue.

Also, I'm quite confident in saying that I'm not allergic to salt because I eat it every day, and it doesn't cause me any problems at all, only the cough when it's way too much for a bite.

So, it is commonly said that reptiles (most of them, anyway) cannot form social bonds/feel love because they do not live in groups so therefore didn’t evolve that ability. But cats, specifically house cats, are commonly accepted to feel love and seem to display affectionate behavior. But cats evolved from the African Wild cat, which is a solitary predator, so why did they evolve to feel love? I know female cats care for their kittens, so maybe that’s why they feel love, but that’s only for a few months, and so do crocodiles. And if that were the reason, why can male cats also feel love if they don’t care for kittens?

Sounds super cut and dry, but I’m curious if a woman today can vomit the whole 9 months, is there any evidence primal women carried worse? A lot of women are also subject to: ges. diabetes, high blood pressure, falling teeth, gum disease, swollen limbs etc. How would this turn out for women thousands of years ago? Why is pregnancy so detrimental to the body now?

Also wondering does other mammals actually experience morning sickness and the whole 9, or is it just us?

I've read that in rare cases these trees will change sex of one of there branches but how common just is this? Better yet, do all Ginkgos have the ability to do this or is this just a rare mutation?

It was a little under 1 pound of spinach for reference.

I ask myself this sometimes and truly wonder if other highly intelligent animals like whales,elephants,etc have beliefs? We know orcas,dolphins,etc have different cultures(or just orcas dont remember) so this makes me wonder do they also believe in a being similar to what we think is our god? Do they also think their created for a purpose and that their not animals made from nature?(because people often think we are not animals like the rest for some reason)

I imagine there probably isnt any studies on this, but i just want to hear peoples thoughts and ideas.

It is said that mammals went through an evolutionary bottleneck during the time of the dinosaurs. Most mammals only see two color wavelengths, sometimes one, and sometimes none. This was because our ancestors were mostly nocturnal to avoid competition with dinosaurs during the day. They also have superior smell and hearing than other vertebrates, and fur, because of this.

But why do primates still have good color vision if they didn't diverge from other mammals until 10 million years after the Cretacious-Paleocene extinction?

I have done loud self talk frequently that it has become integrated into my identity. It started since I was a kid because of loneliness and continued to adulthood. I still do that when I am alone and don't even know I am doing it. I sometimes also murmur when speaking with people as a form of processing my thought. Is it problematic and I have been told I am a little slow during conversations (the pace of language is off). What could explain this behavior? Thanks in advance!

OK so this is a bit of an odd one. I recall reading many years ago about a defunct system of taxonomy that assumed that in the end each taxonomic rank would have the same number of "members." It was a particular number, between four and six, so for my example let's use five. According to this taxonomic model, there are expected to be five classes, and within one such class five orders, and within one such order five families, and within one such family five genera, and within one such genus five species. Does anyone know the name of the person who propagated this idea or what the name of the idea is?
Thanks so much!

Hey!

I recently came across the fact that spotted hyenas have really difficult births because of their anatomy, and now I'm curious to learn more about it.

Does anyone know any good resources on this, or would anyone who's familiar with the topic be up for discussing it? I'm also curious if there are other wild animals that have similarly difficult births. Thanks!

Thanks!

If the sound of cracking and popping of joints is caused by air bubbles: how do the air bubbles get in the joint spaces to build up in the first place? Where do the bubbles come from? And where do they go once popped/released out of the joint space?

Imagine GMO single celled algae with more efficient photosynthesis, optimized metabolism, nitrogen fixing and faster growth and reproduction rates. It would cause eutrophication on an unimaginable scale, destroy marine ecosystems and cause climate change.

It would be impossible to fully eradicate.

Even natural algae, aquatic plants and photosynthetic organisms with their inefficiently evolved photosynthesis have caused plenty of cataclysms.

Is this threat real but completely flying under the radar?