#1 By: Maggie Koerth-Baker, September 25th, 2013 12:28
#2 By: Boundegar, September 25th, 2013 13:12
does having immune "memory" really make us that much better off than the animals that don't have it?
Yes, it is just one more way in which we Chordates are superior; and yet those damn molluscs continue to oppress us!
#3 By: millie fink, September 25th, 2013 13:23
Check out this doctoral thesis
Your faith in us is . . . inspiring!
#4 By: incarnedine_v, September 25th, 2013 13:38
well yeah... I'd rather get vaccinated to polio then have my immune system try and fight it on it's own.
#5 By: Preston, September 25th, 2013 14:05
Having an innate immune system seems to work best for animals that have a short life span, a limited territory, and an ability to repopulate quickly if the population crashes.
#6 By: Cynthia Bonville, September 25th, 2013 15:27
Whoa, I just had my mind blown. Never ever thought about the immune system being a relatively new thing in evolution or confined to chordata... Wow. So, if Preston Sturges is correct, that would imply that r reproducers who happen to have a spinal chord could have a limited immune system that little energy was devoted to. In particular the rats and mice that have great surges of populations every few cycles... Huh. My computer won't let me open the links which means I am sad but it is an investment issue, evolutionary issue, or energetic issue?
#7 By: Rick Westerman, September 25th, 2013 15:39
Indeed. 266 pages. Granted half of that is in Spanish (thus making it interesting to read the English and Spanish in parallel). Hopping down to the 'conclusions' helps in reading quickly. I noticed that the author used one of my favorite transcriptome tools -- Trinity -- for initial assembly.
#8 By: He who must not be named, September 25th, 2013 17:00
You might not be able to vaccinate them, but can you _speak_ to them?
#9 By: Sam Paul, September 26th, 2013 00:38
To be fair you do have to 8 arms to deal with.
#10 By: Preston, September 26th, 2013 01:02
I think it's just that they are getting along well with a simple immune system because that's all they need. Sea urchins don't have lungs well because they don't, not that they "need" them or they will ever develop them.
In our body, the immune system selects B cells in each individual's body to create an adaptive immune response. But if a disease killed 95% of oysters, they'd swiftly repopulate. It's like bacteria - they don't have an immune system but they have constant selection of the population.
#11 By: Jason's Robot, September 26th, 2013 02:53
The thought of crowded 'octopus farms' makes me sad.
They're such bright, nuanced, interesting creatures.
Plus, I assume; since they're more of a solitary animal, they don't really naturally need an adaptive system. Crowding them together obviously isn't what they're built for.
#12 By: Preston, September 26th, 2013 11:35
Also a lot of molluscs and such complete their sexual life cycle without actually contacting their mate, so there's a lot less potential disease transmission.
#13 By: Maggie Koerth-Baker, September 30th, 2013 12:28
This topic was automatically closed after 5 days. New replies are no longer allowed.