#biology

devevo@diasp.org

#biology #diet #SugarAndFatCravings #dopamine
Monell Center Study: New Gut-Brain Circuits Found for Sugar and Fat Cravings
Fat, sugar, and the combination of both (chocolate) navigate a gut-brain maze.
Image credit: Isadora Barga, de Lartigue lab: The blue path represents the sugar route, the green path signifies the fat route, and the yellow path represents the combined impact of fats and sugars. Each path leads to the brain, but the combined route has a greater impact, triggering heightened dopamine release in the reward circuits, emphasizing the synergistic effect of fat-sugar combinations on neural responses.
https://monell.org/monell-center-study-new-gut-brain-circuits-found-for-sugar-and-fat-cravings/

devevo@diasp.org

#biology #anthropology #homolongi
A Brazilian anthropologist has reconstructed the face of the archaic human species Homo longi from a well-preserved skull discovered in northeastern China in the 1930s. Homo longi is an extinct species of the genus Homo that lived in Asia during the Middle Pleistocene.
Nicknamed Dragon man, the species was identified from a nearly complete skull dated to 148,000 years ago.
https://www.sci.news/othersciences/anthropology/homo-longi-face-12609.html

wazoox@diasp.eu

Why flying insects gather at artificial light | Nature Communications

#science #biology #ethology #insects

Contrary to the expectation of attraction, insects do not steer directly toward the light. Instead, insects turn their dorsum toward the light, generating flight bouts perpendicular to the source. Under natural sky light, tilting the dorsum towards the brightest visual hemisphere helps maintain proper flight attitude and control. Near artificial sources, however, this highly conserved dorsal-light-response can produce continuous steering around the light and trap an insect. Our guidance model demonstrates that this dorsal tilting is sufficient to create the seemingly erratic flight paths of insects near lights and is the most plausible model for why flying insects gather at artificial lights.

https://www.nature.com/articles/s41467-024-44785-3

wazoox@diasp.eu

Researchers Say It’s Time to Stop Naming Organisms After People

#biology #science #politics #wokistan

For some people, the stakes of such decisions can feel high. “Naming and language have power. The way that you use language tells people whether they belong or not,” Earyn McGee, a conservation biologist and organizer of Black Birders Week, told Undark in 2020. The refusal to change species names, she said, “tells Black people and other people of color that they don’t matter, that they’re not important.”

https://undark.org/2023/05/24/researchers-say-its-time-to-stop-naming-organisms-after-people/

devevo@diasp.org

#biology #ornithology #nightparrot #Australia

Rare recording of 'mysterious' night parrot song made by Indigenous rangers in Gibson Desert
ABC Alice Springs
Indigenous rangers have captured a rare recording of the "extremely secretive" night parrot in a remote part of Western Australia.
Key points:

There are about a dozen sites in the entire country where the night parrot is known to occur
This new location is being kept a secret to protect the critically endangered bird
It's the first time many traditional owners have heard the night parrot since they were children

Described as the "holy grail" of ornithology, the elusive bird was rediscovered in 2013, more than a century after it was last seen.

https://www.abc.net.au/news/2023-12-16/indigenous-rangers-record-song-of-night-parrot-gibson/103202276

devevo@diasp.org

#biology #snakes #gartersnakes
Garter snakes make friends, organize their society around females
Finding comes from first-of-its-kind study of thousands of wild snakes
Garter snakes have something in common with elephants, orcas, and naked mole rats: They form social groups that center around females. The snakes have clear “communities” composed of individuals they prefer hanging out with, and females act as leaders that tie the groups together and guide their members’ movements, according to the most extensive field study of snake sociality ever carried out…
https://www.science.org/content/article/garter-snakes-make-friends-organize-their-society-around-females

robbie@diaspora.ragesoss.com

Kids Are Getting a Bad Reputation and it's Not Justified

I'm still #newhere because I wanted a place to make a #blog that doesn't make me make an account, pay for it, or have ads to pay for it. So here's my first blog entry.

All you see on TV #news or on the internet about #kids is about how stupid kids are, how confused about everything from #science, especially #biology, to #history and human interaction. Maybe in big cities where #education is all corrupted by politics that might be true. But I don't think you can write off a whole generation because kids in the news don't know which bathroom to use and can't tell you anything about the history of their own country and culture. We're not all like that! In fact I think the majority of kids, the ones you never hear about, aren't so ignorant and confused as people think.

I wonder if that is true about a lot of things. Watching the news it all looks bad! But people find ways to make life work and get through life without all that drama and without wars and protests and things that just make noise and hide the real truth behind one crisis after another.

#Adults reading this should know that probably most kids aren't all mixed up about their identity or their gender. The only thing really in doubt is our future, because the world we are about to inherit is a big battleground where the powerful compete for more power and who use confusion and mayhem to accomplish it.

digit@iviv.hu
devevo@diasp.org

#biology #evolution #coelacanth
story of the Coelacanths...
Coelacanths are one of only two surviving groups of lobe-finned fish along with the lungfishes. Lobe-finned fish are bony fish notable for their fins being attached to muscular lobes. The lobes of lobe-finned fish eventually evolved into the first vertebrate limbs. That makes lobe-finned fish the ancestors of all reptiles, amphibians, and mammals, including you. In fact, you are more closely related to a coelacanth than a coelacanth is to a tuna. Coelacanths were thought to be the closest living link to tetrapods, but genetic testing has shown that lungfish are actually closer to the ancestor of tetrapods...
click link below!
https://www.tumblr.com/bethanythebogwitch/730895774531174400/i-recently-found-out-a-show-i-liked-is-10-years?source=share