The exceptions of biology: square “bacteria”

This is a very short post with something curious that I found…

Whenever we think “bacteria”, most of us immediately think of diseases, or, if you are a biologist or have ever taken a biology course, you immediately think about roundish-, corkscrew- or “stick-like”- shaped microorganisms. Click here for a good blogpost on these forms…


Prepare your mind to be blown (mine was)…

Did you know that there are square “bacteria”? The brackets are there because they are not exactly bacteria, but close enough. They are archeans, bacteria-like organisms that are usually extremophiles.

With that disclaimer, for simplicity’s sake, I will refer to these guys as bacteria.

Without further ado, I give you Haloquadratum walsbyi!

Haloquadra walsbyi comb

Credit:, and Mike Dyall-Smith.

Not all of them are perfectly square though, but I find them no less striking… I hope to be able to write a more complete post soon.

Want to see more of the things I write? Go here for some other posts. By the way, I wrote a book!


TFB is available as an ebook (Kindle, Nook, as well as in iTunes). The price of the Kindle version was just reduced by Amazon… (:-)

The hardcover is available at Amazon and at the Oxford University Press’ website.  There’s even a 20% discount code from OUP.

This is a popular science book, which I hope to be enjoyed by laypeople and biologists alike.

Shoot me a message if you have any questions!

You can subscribe to my blog! Just go to the “Home” page, right hand side.

Facebook page

Twitter: @Baldscientist

For my Amazon author page, click here.

For the customary disclaimers go to my “About” page…

Categories: Tags: , ,

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s