Cool Science

[NMaude]

It would appear that palaeontologists now know why T. Rex had such puny forearms:

Thanks to a study that came out just a few months ago, we now officially know what T. rex’s tiny arms were actually for. In this video, I break down that study in detail.

 

[NMaude]

An interesting video into why some people are mosquito magnets, from Anton Petrov:

Hello and welcome! My name is Anton and in this video, we will talk about mosquito magnets
Links:
https://www.cell.com/iscience/fulltex...https://www.youtube.com/redirect?ev...ltext/S2589-0042%2826%2902384-9&v=fREwyj53FPg
https://theconversation.com/mosquitoe...https://www.youtube.com/redirect?ev...-people-more-than-others-289647&v=fREwyj53FPg
https://theconversation.com/skin-mout...https://www.youtube.com/redirect?ev...ut-that-has-a-microbiome-208516&v=fREwyj53FPg
Other videos:
https://www.youtube.com/watch?v=qyMbXCzcS0k
• Surprise Evidence That Gut Microbes Direct...

• Direct Connection Between Gut Microbiome a...
https://www.youtube.com/watch?v=Dh6Hy420-eQ
#mosquito #biology #microbiome

0:00 Mosquitos! Why me?
1:35 Types of mosquitos
3:20 New study tests everything
4:50 Results
5:30 What attracts them?
6:40 Unexpected findings
10:10 Implications and conclusions

 

[NMaude]

The World's scariest flying predators from each period:

 

[NMaude]

The Chixulub impactor might not be the whole story in regards to the KT extinction event that ended the non-avian dinosaurs:

Think you know what killed the dinosaurs? Think again. Breakthrough evidence is reshaping everything we knew about Earth’s most famous mass extinction, and revealing that the famous asteroid impact might not tell the whole story

▀▀▀▀▀▀
https://www.youtube.com/watch?v=U1DedLVjeE0
0:00 The Dinosaur Extinction
2:24 Iridium
3:41 Chicxulub Crater
6:21 Fish Fossils
7:53 Why Was It So Deadly?
11:27 15-Year Winter
13:53 Double Impact
20:43 Volcanic Eruptions
23:53 Earth’s Recovery
26:35 Fungi Take Over


▀▀▀▀▀▀

References:
“Extinction Day”, via imperial.ac.uk https://astrumspace.info/extinctday
“The Chicxulub File: Discovering the K-Pg Mass Extinction”, via researchgate.net https://astrumspace.info/chicxfile
“A Seismically Induced Onshore Surge Deposit at the K-Pg Boundary”, via nih.gov https://astrumspace.info/kpgsurge
“Dinosaur-Destroying Asteroid Struck in Spring”, via nature.com https://astrumspace.info/springext
“A Steeply-Inclined Trajectory for the Chicxulub Impact”, via nature.com https://astrumspace.info/chicxtraj
“Revealing the Hidden Patterns of Shark and Ray Diversity”, via sciencedirect.com https://astrumspace.info/sharkdiv
“Five-Mile Asteroid Impact Crater Below Atlantic”, via hw.ac.uk https://astrumspace.info/nadir
“Fungal Proliferation Before and After the K-Pg Mass Extinction”, via pnas.org https://astrumspace.info/kpgfungi
“U-Pb Geochronology of the Deccan Traps”, via science.org https://astrumspace.info/deccantraps
“Space Dust Reveals Rapid Evolution After Dino-Killing Asteroid”, via science.org https://astrumspace.info/spacedust

▀▀▀▀▀▀

Credits:
Narrator: James Stewart
Writer: Milla Harrison
Video Editor: Shane Cooke
Animator: Peter Sheppard
Researcher: Shourya Shrivastava
Script Editor: Damaris McColgan
Thumbnail Designers: Peter Sheppard, Juane Dames
Publishing Lead: Georgina Brenner
Production Coordinator: Rose Unwin
Edit Producer: Poppy Pinnock
Producers: Alex McColgan, James Stewart
Head of Astrum: Jess Jordan
Creator of Astrum: Alex McColgan

▀▀▀▀▀▀
https://www.youtube.com/hashtag/astrumearth
#AstrumEarth #Astrum #Dinosaurs

 

[NMaude]

An interesting PBS Eons video concerning mutant plants that were a result of the Great Dying:

What was it about the Great Dying that caused a global age of mutant plants? And could figuring it out help us avoid triggering the next one?

 

[NMaude]

A very lengthy video about what caused the Cambrian Explosion:

9:48 - Part 1 - The Cambrian Explosion
29:40 - Part 2 - A Real Explosion?
44:51 - Part 3 - Animals From The Earth
1:07:27 - Part 4 - Tipping Points

Written & researched by Leila Battison. Check out her channel:-
https://www.youtube.com/channel/UCXIk7euOGq6jkptjTzEz5kQ
/ @drleilabattison https://www.youtube.com/channel/UCXIk7euOGq6jkptjTzEz5kQ
Video & script edited by Pete Kelly. Check out his channel:-
https://www.youtube.com/channel/UCMq-bTjlaTZhaohEracnN6w
/ @petekellyhistory https://www.youtube.com/channel/UCMq-bTjlaTZhaohEracnN6w
Narration by David Kelly. Check out his channel:-

/ @voicesofthepasthttps://www.youtube.com/channel/UCqoGR_EedlhKDVuWNwYWRbg

Thumbnail Art by Ettore Mazza-

Image Credits:
Matteo De Stefano/MUSE

Avancna https://en.wikipedia.org/wiki/Trilobo...
Oleg Kuznetsov - 3depix - http://3depix.com/ 3D Epix Inc.
http://www.ediacaran.org/fractofusus....
F. S. Dunn, C. G. Kenchington, L. A. Parry, J. W. Clark, R. S. Kendall & P. R. Wilby https://www.nature.com/articles/s4155...
Spriggina ovata, South Australia. Image: Dr Alex LiuDaderot - Own work
https://en.wikipedia.org/wiki/Spriggi...
spriggina.html
https://en.wikipedia.org/wiki/Dickins...
Aleksey Nagovitsyn (Alnagov
https://commons.wikimedia.org/wiki/Fi...https://www.youtube.com/redirect?ev...han_shale_outcrop.JPG#filelinks&v=kO2hSKLuFNs
https://commons.wikimedia.org/wiki/Fi... https://en.wikipedia.org/wiki/Trilobi...https://www.youtube.com/redirect?ev...a/File:Scutelluid_trilobite.jpg&v=kO2hSKLuFNs
https://en.wikipedia.org/wiki/Trilobi...https://www.youtube.com/redirect?ev...obite_Olenoides_Mt._Stephen.jpg&v=kO2hSKLuFNs
https://en.wikipedia.org/wiki/Tardigradehttps://www.youtube.com/redirect?ev...n.wikipedia.org/wiki/Tardigrade&v=kO2hSKLuFNs
http://www.ediacaran.org/charnia-maso...
Photo: Bob Thomas/Popperfoto via Getty Images/Getty Images

 

[Brett Davidson]

Cautionary tales from the world of design and engineering.

View: https://www.youtube.com/watch?v=uFbxUPbZovM


How does a machine communicate with its user effectively?

 

[NMaude]

Anton Petrov has uploaded a video concerning sleep and the role our gut bacteria plays in it:

Hello and welcome! My name is Anton and in this video, we will talk about neuroscience of sleep
Links:
https://www.nature.com/articles/s4158...https://www.youtube.com/redirect?ev...com/articles/s41586-026-10928-3&v=x1wGl3b0s9o
https://linkinghub.elsevier.com/retri...https://www.youtube.com/redirect?ev.../retrieve/pii/S0092867425006269&v=x1wGl3b0s9o
https://source.washu.edu/2026/09/catc...https://www.youtube.com/redirect?ev...washu.edu/2026/09/catching-zzzs&v=x1wGl3b0s9o
https://news.fiu.edu/2026/sleep-disor...https://www.youtube.com/redirect?ev...dy-shows-they-change-your-brain&v=x1wGl3b0s9o
https://www.frontiersin.org/journals/...https://www.youtube.com/redirect?ev...10.3389/fnins.2025.1608302/full&v=x1wGl3b0s9o
https://journals.sagepub.com/doi/10.3...
https://www.youtube.com/redirect?ev...epub.com/doi/10.3233/JAD-210404&v=x1wGl3b0s9o

#neuroscience #sleep #insomniahttps://www.youtube.com/hashtag/insomnia
https://www.youtube.com/watch?v=x1wGl3b0s9o
0:00 Why do we sleep?
1:50 What drives the idea of sleepiness? Neurons behind this
6:10 Growth hormone loop
9:09 Not just neurons? Bacteria too!
10:40 Holobiont hypothesis
12:10 Implications and conclusions

 

[Justo Miranda]

A video by ExtictZoo about the apex predator from every single geological period:

Thank you for sharing this extraordinary video. It is a work of top-quality scientific dissemination edited with videos and illustrations made by artists with soul who know what they are doing.