Daohan "Rex" Jiang's Avatar

Daohan "Rex" Jiang

@rexjiang.bsky.social

Evolutionary biologist; postdoc @oistedu.bsky.social; evolutionary theories | complex traits | evolutionary novelties Views are my own. https://rexjiang385518549.wordpress.com/

1,254 Followers  |  648 Following  |  290 Posts  |  Joined: 21.07.2024  |  2.051

Latest posts by rexjiang.bsky.social on Bluesky

I grew up learning simplified, so might have messed up different systems. IMAO merging characters was probably not a great choice in simplification as it created more characters with multiple meanings and/or pronunciationsโ€ฆ

01.12.2025 03:17 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

As I remember, the traditional character for โ€œdryโ€ is ไนพ, that for โ€œto doโ€ and โ€œstemโ€ is ๅนน (as in ๆจนๅนน), and โ€œinterferenceโ€ is ๅนฒ (as in ๅนฒๆ“พ, ๅนฒๆถ‰)ใ€‚ In simplified Chinese theyโ€™re all merged into one (ๅนฒ). From the English note I thought you meant the second.

01.12.2025 03:17 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

This TA responded incredibly hereโ€ฆitโ€™s ridiculous what this situation is turning into

01.12.2025 00:32 โ€” ๐Ÿ‘ 26    ๐Ÿ” 7    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0

The character in the 2nd column from right (ๅนฒ) is a simplified one (the traditional would be ๅนน, as I remember), isnโ€™t it? Yet the book is also using some traditional characters (like ่จ‚ instead of ่ฎข). A mixture system?

30.11.2025 08:02 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Whoโ€™s keeping track of where all this โ€˜protection moneyโ€™ Universities are paying is going? Whoโ€™s keeping track of where the money from the tariffs is going? Because services are gutted, Universities are squeezed like scrawny kids on the school yard, yet the deficit keeps growing. Whoโ€™s getting rich?

29.11.2025 05:56 โ€” ๐Ÿ‘ 79    ๐Ÿ” 17    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 1

Let's see how many of my guesses are correct! It's actually fun to try to guess, though I only expected to do so before the show's aired but not while watching. I'm also looking forward to @tetzoo.bsky.social writing a more thorough ๐Ÿงต.

27.11.2025 12:25 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Mounted skeleton of a short-faced bear of species Arctodus simus. Displayed at the Field Museum of Natural History.

Mounted skeleton of a short-faced bear of species Arctodus simus. Displayed at the Field Museum of Natural History.

Ep 5:
The sea cow was Steller's sea cow (Hydrodamalis gigas), I suppose? The bear that tried to attack it should be Arctodus simus (skeleton in the photo๐Ÿ‘‡).
Homotherium again! This time hunting mammoth.
At last, the North American saber-tooth had to be Smilodon fatalis.

27.11.2025 12:25 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Little to say for Ep 3๐Ÿ˜ถ , so jumping to Ep 4.
The saber-tooth cats seem to be another species of Homotherium, and the otters they fought seem to be Enhydriodon.
The armadillos in the ep were Doedicurus. IMO they deserved to be called by name to be distinguished from Glyptodon.

27.11.2025 12:25 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Fossils of prehistoric mammals displayed at the Field Museum of Natural History. Near the center of the photo is mounted skeleton of Glyptodon. Standing behind the Glyptodon on hind legs is mounted skeleton of Megatherium.

Fossils of prehistoric mammals displayed at the Field Museum of Natural History. Near the center of the photo is mounted skeleton of Glyptodon. Standing behind the Glyptodon on hind legs is mounted skeleton of Megatherium.

Ep 2:
IDK what the South American canines were.
The giant sloth, I assume, was Megatherium.
The giant armadillos seem to be Glyptodon (photo).
The giant stork should be Leptoptilos robustus (in the photo, behind Glyptodon).
S. populator again.
No confidence in the terror birds.

27.11.2025 12:25 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Life-sized reconstruction model of a Homotherium, displayed at La Brea Tar Pits & Museum.

Life-sized reconstruction model of a Homotherium, displayed at La Brea Tar Pits & Museum.

A reconstruction model of Smilodon populator displayed at the Shanghai Natural History Museum. Photo was taken in 2016.

A reconstruction model of Smilodon populator displayed at the Shanghai Natural History Museum. Photo was taken in 2016.

Ep 1: The sloth was probably Megalonyx (genus of Sid from Ice Age). The saber-toothed cats going after wooly rhinos were Homotherium, and those after Macrauchenia were Smilodon populator. Life-sized models in the photos๐Ÿ‘‡

27.11.2025 12:25 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

The 5 eps of #PrehistoricPlanetIceAge indeed cured my soul in this miserable November. With many animals never addressed by a genus or species-level name, I kept making (hopefully educated) guesses about their identities based on my limited paleo knowledge. A ๐Ÿงต ahead for my guesses...

27.11.2025 12:25 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Hopefully you'd be writing a thread going thru species that appeared in the show? Many were only referred to by common names shared by more than one genera (such as "saber-toothed cat" or "(ground) sloth").

27.11.2025 04:39 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

The wrong sub can be confusing & misleading to Chinese audiences. Even if they can understand the English, most aren't familiar w/ US units or how to convert. Without later contexts, I'd also have misunderstood. I don't think whoever in charge of the narration script made a great decision. 2/2

26.11.2025 15:18 โ€” ๐Ÿ‘ 7    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

My only complaint about #PrehistoricPlanetIceAge is the "minus 50 degrees" at the beginning. It's Fahrenheit but not explicitly said to be. Only later I realized they aren't using metric. Traditional CN & JP sub converted to roughly correct Celsius (-45), but simplified CN weirdly gave -10. 1/2

26.11.2025 15:18 โ€” ๐Ÿ‘ 15    ๐Ÿ” 3    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 0

Sorry to hear youโ€™re in this tough situationโ€ฆ

25.11.2025 02:06 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

The remote (but not too remote) reason why Iโ€™m here now.

24.11.2025 12:51 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

่ฟ™ไนˆๅคšไบบ่ง‰ๅพ—็ฝช็Šฏ้ข†ๅฏผ็š„ๆ”ฟๅ…š่ƒฝๅ‡ๅฐ‘็Šฏ็ฝช๏ผŒ่ฟ™ไธช็คพไผšๆžœ็„ถ่ฟ˜ๆ˜ฏไธๆญฃๅธธใ€‚

20.11.2025 08:46 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Since itโ€™s about paleo, I couldnโ€™t help being reminded of THAT Marshโ€ฆFortunately, not himโ€ฆ ๐Ÿ˜‚

20.11.2025 07:06 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

They genuinely absolutely definitely want to destroy me. How can I be willing to be there anymore?

14.11.2025 07:11 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

The Nanotyrannus of phylogenomics ๐Ÿ˜‚ but apparently less attractive to โ€˜netizen scientistsโ€™ due to theological/technical barrier.
(Attaching a comb jelly photo I tookโ€”theyโ€™re amazing!)

14.11.2025 01:23 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

November is my worst month and I knew it

12.11.2025 08:53 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

The color scheme is based on its close relative Sinosauropteryx, I believe, which was inferred from preserved melanosomes.

Sinocalliopteryx may also be called โ€œraptor-swallowingโ€ as dromaeosaurid leg bones were found in the holotypeโ€™s stomach.

11.11.2025 04:13 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Sadly my cellphone couldn't take a clearer video at that distance... I used to keep such video clips as personal collections, but this time I feel like making it visible.

10.11.2025 14:06 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Sword-tailed Newt Consuming a Dragonfly
YouTube video by Rex Jiang Sword-tailed Newt Consuming a Dragonfly

An observation from almost a year ago. An #Okinawa sword-tailed #newt (Cynops ensicauda popei) was consuming a dead dragonfly. Several others approached during this but didn't get a bite. Associated iNat observation: www.inaturalist.org/observations...

youtu.be/o9d-0hufDfI

10.11.2025 14:06 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Thatโ€™s very lucky! (so long as it didnโ€™t rush towards you ๐Ÿ˜‚)

10.11.2025 03:53 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Going to save my soul in a stressful Novemberโ€ฆ

08.11.2025 10:18 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Preview
Immigrants with health conditions may be denied visas under new Trump administration guidance Foreigners seeking U.S. visas might be rejected if they have certain medical conditions, including diabetes or obesity, under a directive from the Trump administration.

I already decided that I don't wanna go to US in near future, yet this regime keeps giving me more reasons for it. The blatant ableism is a new one of them.
abcnews.go.com/Health/immig...

08.11.2025 08:08 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

When people celebrate the individual genius of folks in science, they should also
mourn the collective loss of genius of folks who were actively discouraged or disadvantaged from a career in science because of the same person(s)

07.11.2025 23:43 โ€” ๐Ÿ‘ 1350    ๐Ÿ” 296    ๐Ÿ’ฌ 10    ๐Ÿ“Œ 14

โ€œIn particularโ€

07.11.2025 06:58 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Even for sci comm, the turkey ๐Ÿฆƒ reference isn't necessarily ideal as the audience may not be familiar with turkey anyway...To my kid self, it wasn't as straightforward as simple dimensions in (centi)meters, since turkey isn't a common meat animal in China.

06.11.2025 11:54 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

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