GrrlScientist ⧖ Ⓥ 🇺🇦1d ago

The High Energetic Costs Of Changing Colors In Octopus

"Changing colors is as energetically demanding for octopuses as jogging for 23 minutes is for humans."

by @GrrlScientist via #Medium

#octopus #SciComm #colors #energetics #physiology #camouflage #communication #thermoregulation https://medium.com/grrlscientist/the-high-energetic-costs-of-changing-colors-in-octopus-ebcfe63f4432

The High Energetic Costs Of Changing Colors In Octopus

You might not realize this, but quickly changing colors, as octopuses do, is energetically costly. This, according to a recently published study by two biologists who measured oxygen consumption…

The Academic
GrrlScientist ⧖ Ⓥ 1d ago

The High Energetic Costs Of Changing Colors In Octopus

"Changing colors is as energetically demanding for octopuses as jogging for 23 minutes is for humans."

by @GrrlScientist via #Medium

#octopus #SciComm #colors #energetics #physiology #camouflage #communication #thermoregulation https://medium.com/grrlscientist/the-high-energetic-costs-of-changing-colors-in-octopus-ebcfe63f4432

The High Energetic Costs Of Changing Colors In Octopus

You might not realize this, but quickly changing colors, as octopuses do, is energetically costly. This, according to a recently published study by two biologists who measured oxygen consumption…

The Academic
GrrlScientist ⧖ Ⓥ 🇺🇦2d ago

The High Energetic Costs Of Changing Colors In Octopus

"Changing colors is as energetically demanding for octopuses as jogging for 23 minutes is for humans."

by @grrlscientist via #Medium

#octopus #SciComm #colors #energetics #physiology #camouflage #communication #thermoregulation https://medium.com/grrlscientist/the-high-energetic-costs-of-changing-colors-in-octopus-ebcfe63f4432

The High Energetic Costs Of Changing Colors In Octopus

You might not realize this, but quickly changing colors, as octopuses do, is energetically costly. This, according to a recently published study by two biologists who measured oxygen consumption…

The Academic
The Secret Life Of Plants🌱2d ago
Wissenswertes zu #Hummeln 🙂
Aufheizen der Flugmuskulatur wie bei einem Motor.
Tatsächlich ist die Hummel wie nur wenige wechselwarm #Insekten in der Lage, auch bei kalten Außentemperaturen ihre Muskulatur auf konstant 30°C aufzuheizen. Dies geht nur durch eine effiziente #Thermoregulation, so dass es sogar eine Hummelart gibt, die ihre Nester im Gletschereis baut. Zum Aufwärmen „zittert“ die #Hummel mit der Flugmuskulatur, d.h., sie spannt die Muskeln immer wieder an. Dabei wird viel Energie verbraucht, und, wie bei einem Verbrennungsmotor, Energie in Form von Wärme frei (vgl. für Stoffwechselvorgänge Schönfeld 2002, Hoffmann 1978). Das heizt die Muskulatur bis auf 30°C auf. Dieses Zittern ist völlig geräuschlos, auch die Flügel sind völlig bewegungslos. Nur ein Pumpen am Abdomen ist zu erkennen, um die Muskulatur mit reichlich Sauerstoff zu versorgen.
https://aktion-hummelschutz.de/biologie/thermoregulation-bei-wechselwarmen-insekten/
#Bienen #Wildbienen #Wildbiene
Insekten wechselwarm: Wie clever Hummeln die Temperatur regulieren

Hummeln können - obwohl sie wechselwarme Insekten sind - in Grenzen unabhängig vom Klima agieren, anders als andere wechselwarme Tiere. So sind Hummelköniginnen auch bei unter 0°C aktiv. Ursächlich sind Steuervorgänge zum Fluss der Hämolymphe durch Thorax und Abdomen und weitere Anpassungen.

Hummeln
GrrlScientist ⧖ Ⓥ SciComm 🇺🇦2d ago

The High Energetic Costs Of Changing Colors In Octopus

"Changing colors is as energetically demanding for octopuses as jogging for 23 minutes is for humans."

by @grrlscientist via #Medium

#octopus #SciComm #colors #energetics #physiology #camouflage #communication #thermoregulation https://medium.com/grrlscientist/the-high-energetic-costs-of-changing-colors-in-octopus-ebcfe63f4432

The High Energetic Costs Of Changing Colors In Octopus

You might not realize this, but quickly changing colors, as octopuses do, is energetically costly. This, according to a recently published study by two biologists who measured oxygen consumption…

The Academic
CITO GreenhouseApr 11

Mastering Your Body's Thermostat: The Science of Staying Comfortable!

Hashtags: #Thermoregulation #BodyScience #StayCool #HealthTips #TemperatureNinjas #SweatScience #BodyThermostat #HeatStress #WellnessJourney #CoolFacts #BrainPower #BodyMVP #ScienceExplained #StayComfortable

https://youtube.com/shorts/HRx4XvWYfpE?feature=share

Before you continue to YouTube

Doug BostromApr 7

"Across 1520 species of birds, higher temperatures are associated with longer wing bones, as predicted by Allen's Rule... we interpret the positive relationship between temperature and wing-bone length to reflect increased demand for heat dissipation in warmer climates. Our findings highlight the role of thermoregulation in shaping even the most critical features of vertebrate anatomy."

#thermoregulation
#avians
#birds

https://onlinelibrary.wiley.com/doi/10.1111/geb.70033?af=R

Show threadRhyothemisJan 18

@ScienceScholar

Why are the researchers assuming this is an evolutionary change? Not every physical change over generations is due to a change in gene frequencies.

~

Another interesting change:

Decreasing human body temperature in the United States since the industrial revolution
https://doi.org/10.7554/eLife.49555

#biology #anatomy #physiology #vasculature
#thermoregulation

Decreasing human body temperature in the United States since the Industrial Revolution

Since the Industrial Revolution, normal body temperature in both men and women has decreased monotonically by 0.03°C per birth decade.

eLife
RhyothemisNov 26

Intriguing bit in this video about ketamine + rapamycin improving heat tolerance (this is not a recommendation - I don't know enough about it)

https://youtu.be/9Z4Eg1dtyOc?si=EXVnqvV6-vd7rqEj&t=2188

#thermoregulation #physiology #ketamine #rapamycin #HeatTolerance #neuroscience #POTS

Brain Repair: The Ketamine Combo Treatment for Depression and Chronic Pain

YouTube
RhyothemisNov 12

I've been thinking a lot about finding that human body temperature has been decreasing since the Industrial Revolution for a while now.
https://elifesciences.org/articles/49555

Today I say a post about rising CO2 and wondered what effect ambient CO2 might have on Na/K ATPase. While we are taught that heat is generated in the mitochondrion via futile cycling of protons across the mt. membrane, Na/K ATPase activity also contributes. Ectotherms have lower Na/K ATPase activity than endotherms.

So I wondered if CO2 levels affect Na/K ATPase activity, and I found this -
https://pmc.ncbi.nlm.nih.gov/articles/PMC7073107/

Unfortunately I don't have time to read the article and it may be weeks before I can read it.

CO2 levels have been increasing since the Industrial Revolution, Na/K ATPase activity is reduced by CO2 ( in lung epithelium) - could rising CO2 levels be causing the decrease in body temperature?
It's an interesting idea, but I would have to study a lot more to be able to gauge its plausibility.

If there is something to it - it seems like it would be a big deal, just like the decrease in body temperature is, IMO, a big deal.

#thermoregulation #physiology #CO2 #ClimateChange #BodyTemperature #NaKATPase #SodiumPump

Decreasing human body temperature in the United States since the Industrial Revolution

Since the Industrial Revolution, normal body temperature in both men and women has decreased monotonically by 0.03°C per birth decade.

eLife