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text 2016-05-11 21:06
Darwin Used to Feed Raw Meat to Plants

 

 

Dionaea or Venus flytraps are carnivorous plants. It is also the name of a band. This article, Venus Flytrap Carnivorous Lifestyle Builds on Herbivore Defense Strategies, says some interesting things about them. However, first here is a handy page about how to grow them. My favorite part:

 

“If the plant is not catching its own food, it needs to be fed in the traps with live insects, rehydrated dried blood worms, or other kinds of fish food high in insect-derived protein that can be conveniently rehydrated. If you use dead food, the traps need to be massaged to stimulate full closure and digestion.”

 

In fact, this page even has pictures:

 

Today's special: rehydrated dried blood worms

 

Other carnivorous species you crazy kids might be growing!

 

While this place sells different clones!

 

The interesting parts from the article are as follows:

1. Darwin used to open flytraps and tempt them with raw meat to see how the trap worked. He found out that it closed slowly and then started to secrete digestive enzymes.

 

2. This is where things get even more awesome. The first time an insect triggers the trap via mechano-electric stimulation of the hair on the trap, it activates the “poised to capture” mode. If the trigger is re-elicited within 20 seconds, the trap closes fast, capturing the prey. The struggling insect hits the trigger repeatedly and after five or so hits, its fate is sealed. Digestion begins!

 

 

3. The plant is mechano-smart enough to suss out the size and juiciness of the prey by the times it triggers the hair on the trap! It is smart enough to recognize chitin between its paws er jaws er leaves (part of the insect exoskeleton) and increase its enzyme secretion by a thousand-fold.

 

 

4. What links the carnivorous plants with non-carnivorous ones is that hair stimulation in the former causes the biosynthesis of a chemical that is induced by herbivory and wounding in the latter. Hence, the author’s conclusion that “Dionaea re-wires defense responses known from non-carnivorous plants in order to operate its carnivorous lifestyle.”

 

 

5. What is too bad is that all this insect-munching costs the plants metabolism-wise. The cost it extracts is in the form of growth inhibition.

 

6. Lastly, as soon as the digestion of insect-scrumptiousness begins, the resultant goodies are applied towards growing new capture organs and those organs, only!

 

I leave you now with the Great Slug that defied the odds and slithered itself to freedom!

 

#AllHailTheGreatSlug

Source: genome.cshlp.org/content/early/2016/04/28/gr.202200.115.full.pdf
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text 2016-03-15 01:28
Some Smug Slug
Some Smug Slug - Pamela Duncan Edwards,Henry Cole

3rd Grade

 

This book uses alliteration to tell a story about a slug. I would use this in my classroom to help students identify alliteration. This book is a great way to introduce alliteration in the classroom and helps students understand what it means for words to have the same sounds at the beginning. 

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text 2016-01-31 00:30
Tongue Twisters/ Alliteration
Some Smug Slug - Pamela Duncan Edwards,Henry Cole

This book is great to integrate phonemic awareness and writing! It is a fun read aloud, but at the same time the children are learning what alliteration looks like and sounds like. The word choice in this book is so much fun for children. This book is also recommended as the trait 4, which is word choice. This book would be great for a first grade 2nd grade class.

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review 2015-06-04 15:47
For the smaller children
Sam The Slug - Lstarte

We received this book to give an honest review.

 

This is a very short book about a slug named Sam who just goes to eat celery. You have a picture of a bug and the slug and you get to compare how a slug is different than a bug. One walks and the other slides. I read this to A and being two to her it was just a story she couldn't tell me if she liked it or not all she kept saying was bug and bug bite you. There are very few words on each page so it is good for the younger kids it is also good for those who are learning to read. I would have liked to have seen what the lady bug eats as we see the slug eats some celery. 

Short and to the point is really all I can say. The pictures are okay though the ladybug's legs seem very scary looking. 

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review 2014-02-27 16:32
How to Teach a Slug to Read
How to Teach a Slug to Read - Susan Pearson,David Slonim

Probably most folks I know don't need this book, since they're already rather invested in bookishness. But this is the book to turn to if anyone ever asks for a recommendation of something to help an adult learn how to create that book culture in a child. It's not a how-to on teaching literacy, just a friendly picture book overview.

 

And it's got slugs, which, for some reason, really delighted Natasha when she was little. I read the hell out of Slugs in Love, is what I'm saying.

 

Quite useful for some, and just plain cute for the rest.

 

Library copy

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