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New tarantula species discovered in Thailand

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51–60 of 65 posts

Re: New tarantula species discovered in Thailand

#51

Earlier quoted context omitted.

Apparently, structural color is also a lot more vivid (in the paint example, it reflects back almost 100% of the light, vs. 50% for pigment).

If it reflects back 100% of the incident light, it wouldn't have a blue appearance, would it?

I believe it changes the wavelength of the reflected light, producing the observed color.

Re: New tarantula species discovered in Thailand

#52
post #48

> Blue is one of the rarest colors to appear in nature, which makes blue coloration in animals particularly fascinating. Now hold on just a minute. The sky. The ocean. Glaciers. Even human eyes. Blue is so common "in nature" that the Earth, viewed from Mars, looks like a blue glass marble. https://www.universetoday.com/14446/photos-of-earth-from-mar... Blue coloration in plants and animals is admittedly uncommon, but…

> The sky. The ocean. Glaciers. Human eyes All structural. Blue eyes are depigmented, so the iris is basically "transparent" if I remember correctly. Thus they change with the light. The effect is more striking in green eyes that can turn grey.

It should say that blue pigment is rare, not blue color. The premise of structural colors being somehow less real than pigment colors is a bit weird, but for some reason common.

Re: New tarantula species discovered in Thailand

#53

Earlier quoted context omitted.

If it reflects back 100% of the incident light, it wouldn't have a blue appearance, would it?

I believe it changes the wavelength of the reflected light, producing the observed color.

From what I understand, with structural colors the structure is causing certain wavelengths to preferentially reflect or transmit, or behaves as a diffraction grating to split the white light. What you're describing sounds like fluorescence.

Re: New tarantula species discovered in Thailand

#54
post #13

> The secret behind the vivid blue coloration of our tarantula lies not in the presence of blue pigments, but rather in the unique structure of their hair, which incorporates nanostructures that manipulate light to create this striking blue appearance Cool!

It’s actually surprisingly common. For instance, butterflies and peacocks also use this: https://en.wikipedia.org/wiki/Structural_coloration (In fact, I’m pretty sure I read somewhere that only a handful of blue pigments exist in nature; the vast majority of blue animals and plants use structural colouration instead. Can’t recall where I saw it, though.)

There is work currently being done to turn this idea into a usable paint : https://www.science.org/doi/10.1126/sciadv.adf7207

Re: New tarantula species discovered in Thailand

#57
post #10

See also the better known Cobalt Blue and Green Bottle Blue tarantulas, very pretty but not the best beginner pets. They shouldn't be handled and need careful climate. Other tarantulas are very easy, like Rosehair or Pink Toes. They need little attention, make no noise, are hardy desert climate dwellers, and can be handled. I had a female Rosehair live for 20 years as a beginner.

Real question…when you say “can be handled” is it because they’re defanged or because they are socialized and likely won’t bite?

If just socialized, are they just socialized to their owner or to any human?

Re: New tarantula species discovered in Thailand

#58

It sounds like this species has been previously known to hobbyists under the name "Chilobrachys electric blue" I remember seeing this species in YouTube videos from at least a few years ago[0]. It's incredible to me how there's still so much we don't know about our world! [0] https://youtu.be/vDU2sR62v5E?si=eYf7g-ucm3sYSwEx

No, that's a separate species? Edit: apparently not. It's surprising as Well as enraging

Not sure why you find it enraging, it's quite common for new species to be well known in the hobby before they're officially named

Re: New tarantula species discovered in Thailand

#59
post #10

See also the better known Cobalt Blue and Green Bottle Blue tarantulas, very pretty but not the best beginner pets. They shouldn't be handled and need careful climate. Other tarantulas are very easy, like Rosehair or Pink Toes. They need little attention, make no noise, are hardy desert climate dwellers, and can be handled. I had a female Rosehair live for 20 years as a beginner.

Real question…when you say “can be handled” is it because they’re defanged or because they are socialized and likely won’t bite? If just socialized, are they just socialized to their owner or to any human?

Not aggressive and their venom isn't harmful

Re: New tarantula species discovered in Thailand

#60

Earlier quoted context omitted.

No, that's a separate species? Edit: apparently not. It's surprising as Well as enraging

Not sure why you find it enraging, it's quite common for new species to be well known in the hobby before they're officially named

It's because I denounce the exotic pet trade
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