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Old 18th January 2019, 11:13 PM   #521
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Originally Posted by sir drinks-a-lot View Post
You spend your free time predicting the relative nutrient densities of vegetables?

It's NOT an easy hobby.
Did you look at that table? If I was given that list and asked to arrange it in order of its "ranking of nutrient score", I would have been waaayyyyy off.
Never in my life would I have imagined the orange losing convincingly to the iceberg. In what kind of sick world does a carrot beat a strawberry? Strawberries should be top of the list.
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Old 19th January 2019, 03:12 AM   #522
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Originally Posted by Cheetah View Post
It's NOT an easy hobby.
Did you look at that table? If I was given that list and asked to arrange it in order of its "ranking of nutrient score", I would have been waaayyyyy off.
Never in my life would I have imagined the orange losing convincingly to the iceberg. In what kind of sick world does a carrot beat a strawberry? Strawberries should be top of the list.

Is this by individual foodstuffs? I.e. one orange v one iceberg? Or by volume?
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Old 19th January 2019, 03:21 AM   #523
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Did you miss the link?


Quote:
Because preparation methods can alter the nutrient content of foods (2), nutrient data were for the items in raw form.

Second, a nutrient density score was calculated for each food using the method of Darmon et al (10). The numerator is a nutrient adequacy score calculated as the mean of percent daily values (DVs) for the qualifying nutrients (based on a 2,000 kcal/d diet [11]) per 100 g of food. The scores were weighted using available data (Table 1) based on the bioavailability of the nutrients (12): nutrient adequacy score = (Σ [nutrienti ◊ bioavailabilityi)/DVi] ◊ 100)/17. As some foods are excellent sources of a particular nutrient but contain few other nutrients, percent DVs were capped at 100 so that any one nutrient would not contribute unduly to the total score (3). The denominator is the energy density of the food (kilocalories per 100 g): nutrient density score (expressed per 100 kcal) = (nutrient adequacy score/energy density) x 100. The score represents the mean of percent DVs per 100 kcal of food.
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Old 19th January 2019, 03:32 AM   #524
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Originally Posted by Cheetah View Post
Did you miss the link?
Totally missed the link.
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Old 19th January 2019, 03:40 AM   #525
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Originally Posted by 3point14 View Post
Totally missed the link.
Honestly, how does an iceberg beat an orange? I always thought they were just water with stringy bits.
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Old 19th January 2019, 03:43 AM   #526
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Originally Posted by Cheetah View Post
Honestly, how does an iceberg beat an orange? I always thought they were just water with stringy bits.
That is utterly, utterly counterintuitive to me also.
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Old 19th January 2019, 04:42 AM   #527
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Originally Posted by Cheetah View Post
Honestly, how does an iceberg beat an orange? I always thought they were just water with stringy bits.

Because the score being applied is nutrients per energy content. Fifty Calories (a whole small head) of iceberg lettuce has more nutrients than 50 Calories of orange (one orange).
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Old 19th January 2019, 09:17 AM   #528
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Originally Posted by Myriad View Post
Because the score being applied is nutrients per energy content. Fifty Calories (a whole small head) of iceberg lettuce has more nutrients than 50 Calories of orange (one orange).

Off course, thanks.
So a head of lettuce beats a cup of strawberries beats an orange, approximately. A better deal.


The table can be a bit misleading since I have no idea how much of what vegetable makes 50 Calories.


50 Calories of watercress seems to be 12.5 cups.
I am actually still amazed by the evil iceberg.
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Old 19th January 2019, 09:24 AM   #529
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I have learnt - the hard way! - a useful scientific fact this year: that old people tend to lose potassium and that bananas and beetroot are good sources for it.
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Old 19th January 2019, 01:38 PM   #530
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According to Wikipedia, the Indian Elephant is more closely related to the Wooly Mammoth than it is to the African Elephant.
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Old 19th January 2019, 04:16 PM   #531
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Originally Posted by sir drinks-a-lot View Post
You spend your free time predicting the relative nutrient densities of vegetables?
Wouldn't be the worst use of my free time.
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Old 19th January 2019, 07:00 PM   #532
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Something I was reminded of while pondering earlier posts about predator size & locomotion, although it's not necessarily related to that original topic...

Look how each of these critters is turning a foot sideways while walking. They don't always do it, but they can, and sometimes they do. But why... not only why do they do it, but why do they even have the ability? Other animals their size or bigger get by just fine without this; it even seems like it might generally be in conflict with the strength & stability you'd normally expect from a big animal's limbs.

Aside from the fact that none of the big Carnivorans have been so big for more than a few million years, so they're still new at it and might still have more adapting left to do for their new size, there's a deeper explanation: the Carnivoran ancestor was not only smaller but also a tree-climber, like a weasel/ferret/marten, and turning feet sideways is nifty for grabbing branches when you're that small. So the peculiar way the big meat-eating beasts walk on land now is partially based on their still being pretty close to just a scaled-up weasel without a tree.
Attached Images
File Type: jpg sidepaws.jpg (145.6 KB, 9 views)
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Old 19th January 2019, 07:31 PM   #533
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And it's a front foot turning inwards. Turning my hands inward is significantly more comfortable than turning them outwards.
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Old 19th January 2019, 09:27 PM   #534
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Originally Posted by Delvo View Post
Look how each of these critters is turning a foot sideways while walking. They don't always do it, but they can, and sometimes they do. But why... not only why do they do it, but why do they even have the ability?

They are all predators that grasp their prey.
If you have evolved to grab and pull something towards you, having the flexibility to turn your hands/paws to face inwards, is necessary.
If you look at a mole, digging and scooping earth to the sides, their paws face outward.
In animals such as horses, antelope and deer that are built mostly for running the joints are much less flexible and bend basically straight backwards.
Dogs are somewhere between cats and runners.
Lots of animals sometimes use their front appendages to pull food towards their mouths, so have much more flexibility turning their front paws inward than outwards.
In general hind legs are much less multipurpose and mostly optimized for pushing straight back, so much less flexible in that way.
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Old 19th January 2019, 10:42 PM   #535
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Originally Posted by Trebuchet View Post

That's all very nice, but how do they taste?

Cooked up for a po' boy or in a gumbo, for example.
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Old Yesterday, 01:59 AM   #536
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Originally Posted by Cheetah View Post
I am actually still amazed by the evil iceberg.
So was the Titanic.
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Old Yesterday, 08:15 AM   #537
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Originally Posted by Delvo View Post
Aside from the fact that none of the big Carnivorans have been so big for more than a few million years, so they're still new at it and might still have more adapting left to do for their new size, there's a deeper explanation: the Carnivoran ancestor was not only smaller but also a tree-climber, like a weasel/ferret/marten, and turning feet sideways is nifty for grabbing branches when you're that small. So the peculiar way the big meat-eating beasts walk on land now is partially based on their still being pretty close to just a scaled-up weasel without a tree.
Big cats and bears still climb trees. They also grapple prey. That grappling takes advantage of the inward twist of the paws, so it's still important, it's not vestigial.
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Old Yesterday, 10:02 AM   #538
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Originally Posted by quadraginta View Post
That's all very nice, but how do they taste?

Cooked up for a po' boy or in a gumbo, for example.
Like chicken. Everything tastes like chicken.
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Old Yesterday, 11:43 AM   #539
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Originally Posted by Delvo View Post
Something I was reminded of while pondering earlier posts about predator size & locomotion, although it's not necessarily related to that original topic...

Look how each of these critters is turning a foot sideways while walking. They don't always do it, but they can, and sometimes they do. But why... not only why do they do it, but why do they even have the ability? Other animals their size or bigger get by just fine without this; it even seems like it might generally be in conflict with the strength & stability you'd normally expect from a big animal's limbs.

Aside from the fact that none of the big Carnivorans have been so big for more than a few million years, so they're still new at it and might still have more adapting left to do for their new size, there's a deeper explanation: the Carnivoran ancestor was not only smaller but also a tree-climber, like a weasel/ferret/marten, and turning feet sideways is nifty for grabbing branches when you're that small. So the peculiar way the big meat-eating beasts walk on land now is partially based on their still being pretty close to just a scaled-up weasel without a tree.
Cats also have a 'dewclaw' for climbing that weasels don't have.

https://en.wikipedia.org/wiki/Cat_anatomy#Claws

Cats also employ a "pacing" gait a trait they share with camels and giraffes.

https://en.wikipedia.org/wiki/Cat_anatomy#Legs

It is said that one reason why humans find bears appealing is that the bears hind leg resembles a human leg - the bear walks on a complete foot, not just on the toes of an elongated foot such as the felids or canids.




So it looks like a "guy in a suit".
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Old Yesterday, 12:25 PM   #540
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Originally Posted by Elagabalus View Post
So it looks like a "guy in a suit".

Are you telling me there are bears that aren't guys in bear suits?
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Old Yesterday, 02:07 PM   #541
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That's cool and all, but how do you explain this?

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Old Yesterday, 06:12 PM   #542
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Originally Posted by Dave Rogers View Post
A disturbingly large number of my favourite scientific facts come from XKCD. For example, that Tyrannosaurus Rex is more closely related to the sparrow than to the stegosaurus.

Dave
And closer in time to us than to stegosaurus too.
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Old Yesterday, 10:22 PM   #543
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Originally Posted by Venom View Post
That's cool and all, but how do you explain this?

That's not a wild animal.
No wild animal will be able to survive in the wild with only one leg, no feet and no hands, or maybe one hand. It's difficult to see.
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Old Yesterday, 10:25 PM   #544
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Originally Posted by Cheetah View Post
That's not a wild animal.
No wild animal will be able to survive in the wild with only one leg, no feet and no hands, or maybe one hand. It's difficult to see.
One leg, no hands, no feet? You didn't prove that's not a wild animal. You proved it's a woolly snake!
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Old Yesterday, 10:40 PM   #545
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Nvm
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Old Yesterday, 11:41 PM   #546
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Originally Posted by Venom View Post
Put that up against the pistol shrimp's claw snap and it's more than three times as fast!

Wow.

Did you know there is a pistol shrimp with a bright pink claw?



It is the Pink Floyd pistol shrimp, Synalpheus pinkfloydi.



The genus Synalpheus is also unique as it contains the only known eusocial aquatic species .... in the world.


They live inside a few specific sponges, in colonies of up to 350 individuals with only one breeding queen.
It is believed they evolved eusociality because they are fortress defenders.


Quote:
Crespi (1994) argued that three conditions must be met to explain most cases of fortress defense: a coincidence of food and shelter in an enclosed habitat, a high value of food-habitat resources that renders inhabitants vulnerable to predatory attacks, and the ability to defend the resource effectively. The strong selective pressures of enemies on kin-structured aggregations may promote evolution of specialized defenders that raise their own and the breeders' inclusive fitness by defending the colony.

How cool is that, these shrimp living in, and defending their fortress form invaders, ruled by their queen.



Apart from insects and the shrimp the only other eusocial animals are Naked mole-rats and Damaraland mole-rats.


They are one of the weirdest most amazing animals ... in the world.


They are the only eusocial mammals. They have a queen, up to three reproductive males and division of labor amongst the workers.



They are unique in that they defy the GompertzĖMakeham law of mortality. At least as far as they have been studied.
The law just states that there is an age related component to mortality rates that increases exponentially as you get older.
From a glass half empty perspective, the older you are, the less likely it is you will get much older.


Adult Naked mole-rats seem to have about a 1 in 10000 chance of dying in any year, irrespective of how old they are! In fact, it even seems to get a little lower the older and presumably more experienced they get.


Not only are they eusocial and don't seem to age, they are also cute,


  • can swivel around their front teeth independently
  • 1/4 of their muscle mass is in their jaw muscles
  • they always show their teeth when smiling, their lips close behind their teeth
  • they can run as easily and fast backwards as forwards
  • are very resistant to cancer
  • can live with very little oxygen, up to 5 hours with 5%, showing no distress and carrying on as usual, or 18 mins with nothing
  • they are resistant to certain types of pain
  • they also do not thermoregulate but are thermoconformers.


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Old Today, 12:25 AM   #547
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And there are people who have taken the trouble to study these various species, and that of course means that someone has discovered them in the first place, and then find out about their life ccycles. And then we have the privilege of being able to read all about them. We are so lucky.
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