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Rich uses plain language to explore in-depth biology topics | fascinating plants and exotic creatures | www.biology4everyone.com | indulge your curiosity!

Hello, Peter!

Thank you for your warm compliments! Made my day, you did! I might steal that first sentence for a testimonial on my website! With your permission, of course.

I'd like to answer your questions and respond to your comments. First, if you'd like to know more about my background, check out my website: https://www.biology4everyone.com/about/

That will give you a good bit of info! Bottom line: yes, I have a Ph.D. in cell and molecular biology and am now semi-retired. …


Human Host
Human Host
Taken from this article by Hildebrand et al.

There are 3 unique kinds of persistent microbe populations in your gut.

Investigating gut microbiomes is all the rage these days, and for good reasons.

Finding out what organisms we have in our gut microbiome can tell us a lot about our health. And with a few simple strategies, we can promote the ones that help us become even more healthy.

In former decades, determining the trillions of microbes in our microbiome was a daunting task. But as DNA sequencing methods become streamlined, more economical, and databases fill up with the genomes of thousands of microorganisms, it has become more routine.

And it’s pretty simple.

The investigator takes a small sample from…


Photo by Ben Wicks on Unsplash

What I like about it and why you should read it too!

I love it when I come across a book that sensitively and intelligently unpacks an important biological topic.

And seaweeds are just such a topic.

“What?” I can hear you saying. “Why would I care about seaweed?!”

“When I go to the beach I often have to wade through the slippery stuff to get to the good swimming area. And it tangles up my legs and arms. We just need to get rid of most of it!”

Hmmm, I see we have some serious re-education to do here 😉

Here’s why you should care about seaweeds.

They’re important to coastal…



Photo by Nicolas Hoizey on Unsplash

The race to replace the cells in my body!

In what seems like a millennium ago, I think one of my biology teachers said something to the effect that every 7 years, all the cells in my body would be new ones because all the old ones would have died and been replaced.

I thought that was pretty neat! I mean, we know that some cells like the blood cells are replaced pretty rapidly. And some cells stay for a really long time, like bone cells and nerve cells.

And that kind of consoled me because many years ago, I was a smoker and I was pretty sure that…

Rich Sobel

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