verelo 2 minutes ago

Please add the measurement system to the title. The times should know better...

lioeters 2 hours ago

From the paper, that is: 36.3 ± 2.5°C.

  • orbital-decay 2 hours ago

    Thanks, I thought it was almost boiling.

  • gibspaulding 2 hours ago

    So 97.3 ± 4.5 °F for anyone else curious how the precision translates.

  • Galilyou 2 hours ago

    Phew! Thank you! I feel for the ungodly fahrenheit again

    • nmoon 2 hours ago

      Fahrenheit is the superior measure

      • WarmWash 2 hours ago

        Better for day to day life, worse for science and engineering.

        • msm_ 2 hours ago

          Is it really better for day to day life? I am certain that it only appears so because you're used to it. I think for day to day life they're both roughly equivalent.

          Of course, for me Celsius is more natural and intuitive, but again - that's because I'm used to it.

          • antif 2 hours ago

            100F is about peak summer heat; 0F is about peak winter chills. Works great for describing weather .. in various places.

            • esperent 15 minutes ago

              > 100F is about peak summer heat; 0F is about peak winter chills

              ... Where you live, and that's all that matters, right?

          • WarmWash 40 minutes ago

            You can basically put a "%" after a fahrenheit temperature and read it as "percentage of a really hot day" and you'll get a pretty good idea what it feels like outside.

            It's pretty well calibrated as a 0-100 scale for human temperature perception.

            • esperent 21 minutes ago

              I moved from a cold climate to a tropical climate and let me assure you there's no human universal understanding of what's comfortably hot or cold, definitely not to the point of putting a percentage on it. I can walk around in a T-shirt and shorts at 17C (62f) while locals will be wrapping up in scarves and talking about how freezing it is. Meanwhile they'll be fairly comfortable at 35C (95f), at least if the humidity isn't high, and I'll be stuck in with the AC blasting.

              So in other words Fahrenheit is a western centric measurement (or at least, temperature climate centric), while Celsius is universal.

        • konart 2 hours ago

          >Better for day to day life

          It is not.

      • rf15 2 hours ago

        counterpoint: it doesn't matter, since you need to learn relevant boiling/freezing temperatures on both scales anyway.

        As a european: F is the only american system that is easy to use and reason with (considering its 0-100 range is spanning the "doable" temp range of too-cold to too-hot), unlike other imperial systems for lengths and whatnot.

      • deagle50 2 hours ago

        really is, and I grew up in celsius.

mepian 2 hours ago

I read the headline in Celsius and thought that they were a bit too hot.

  • unsnap_biceps 1 hour ago

    Would add a new fun dimension to Jurassic Park.

    "Quick! Climb to 300 meters above sea level and the trex will boil and we will be safe!"

Razengan 8 minutes ago

That's not even a half circle

code_biologist 2 hours ago

Repost from a different thread: Related only topically, a 1hr YouTube talk I enjoyed a lot: "Hatchling T. rex and the Evolution of Vertebrate Parental Care" by Nick Longrich: https://www.youtube.com/watch?v=zd0dR2n9hLA

He's a paleontologist and the talk starts with some pretty interesting statistical analysis aiming to estimate T rex clutch sizes (66 eggs) and hatchling weights (1.5kg) as well as T rex parental care. It ends with looking at evolutionary history trends in increasing parental investment in radically different animals.

He talks a little slow, so a little playback speed bump won't go amiss.

laweijfmvo 2 hours ago

How do we know its body temperature was 97 degrees, and simply not the environment was 97 degrees?

  • pixl97 2 hours ago

    What environment would stay at a constant 97 degrees?

    • surgi 2 hours ago

      Europe this summer? /jk

  • cwmma 2 hours ago

    If it was environmental then you'd expect it to fluctuate over time, but they also checked it against an animal they knew to be cold blooded, if it was environmental you'd expect them to be the same, but that animal was calculated by the same method to be colder.

  • altcognito 2 hours ago

    They compared against crocodilian teeth and those teeth were at a different temperature. Crocodilian teeth are known to be at a similar temperature to their environment because they are known to be cold blooded.

    It is correct to say that we don't know they were warm blooded, just that their body temps were likely the given observed temperature.

john_strinlai 2 hours ago

i know its the nytimes, so we can assume american units, but i find it sort of crazy that even throughout the body of the article it doesnt ever say "fahrenheit".

  • BugsJustFindMe 2 hours ago

    It doesn't need to. Any other unit would be either insanely cold or insanely hot.

    • skrebbel 2 hours ago

      Given that it’s a shouty headline in a major publication, that’s what I would have expected.

  • bthrn 2 hours ago

    Common sense suggests that living creatures are likely not boiling when they have a mild fever.

    • john_strinlai 2 hours ago

      i am not a paleontologist and there have been many extremely weird living creatures over the time earth has been around.

      and as the sibling comment mentions, i am primed for science articles to be metric.

      • falserum 2 hours ago

        I’m metric all the way, but if it would use metric, it still should unambiguously state: C

        • john_strinlai 2 hours ago

          indeed! my "common sense" is to always state the units you're working with, no matter how obvious you think it is.

          at least, that was the concept was drilled into me throughout all my schooling. perhaps that has changed in the last few decades.

    • vojtapol 2 hours ago

      Common sense would be using metric units in science-related article.

      • petcat 2 hours ago

        Americans don't use Celsius when talking about their body temperatures, and that's who the audience is.

        • StilesCrisis 1 hour ago

          Americans don't use Celsius for anything except scientists talking with other scientists.

      • SoftTalker 2 hours ago

        It's a US-based newspaper written for the general public. Common sense would say it's using US units.

ChrisMarshallNY 2 hours ago

Wouldn't be surprised if the smaller raptors had even higher body temps.

  • layer8 2 hours ago

    Seems sensible, given that birds have higher body temperatures.

    • hedgehog 2 hours ago

      I didn't know this so I looked up the number for farm chickens, according to University of Kentucky (seems appropriate) they have a body temperature of "between 105°F and 107°F (40.6° and 41.7°C) ... Smaller chicken breeds have a higher body temperature than larger breeds"

      https://afs.mgcafe.uky.edu/poultry/chapter-7-air-temperature

globular-toast 2 hours ago

Farenheit. So a little bit cooler than us.

ohyoutravel 2 hours ago

This is really interesting, worth a read. Wouldn’t be surprised if the even larger dinosaurs had even higher body temps!

micromacrofoot 2 hours ago

> Up until the early 2000s, dinosaurs were thought to be rather reptilian and therefore probably coldblooded, Dr. Wiemann said. That began to change as multiple lines of evidence from geochemistry studies and CT scans of fossils showed they were warm-blooded. Dr. Wiemann had previously found that T. rex had a fast metabolism, but she said the new study did an “exquisite” job of zeroing in on a precise body temperature.

> To take the body temperature of a long extinct, school-bus-size predator, scientists at the University of California, Los Angeles, used a clever geochemistry technique on fossilized teeth, including two from “Thomas,” a famous T. rex in the collection of the National History Museum of Los Angeles County.

fascinating

we've also learned more about the air at the time via teeth, https://nautil.us/the-data-in-a-dinos-smile-1229729

  • SoftTalker 2 hours ago

    It intuitively makes sense. A cold-blooded creature of that mass would take a long time to properly warm up or cool down. Most modern cold-blooded animals are small, e.g. frogs, snakes, lizards. They can move into the sunlight or shade as needed and pretty quickly change temperature.

modzu 2 hours ago

id assumed as much since seeing jurassic park in 1996

  • kilroy123 2 hours ago

    It's actually older, from 1993.

moomoo11 2 hours ago

i will now believe this information until it becomes outdated in the future, at which point i will believe that information until it becomes outdated later

  • mindcandy 2 hours ago

    Great! That's how knowledge is supposed to work.

    • partyficial 2 hours ago

      that's not knowledge - that's just theory and belief.

      you know, like religion.

juancn 1 hour ago

Wow! Close to boiling! /s