The Origin Of Cockroaches Can Be Traced Back To The World’s Last Supercontinent

Pangaea, everyone’s favorite – but not the first – supercontinent, was a jigsaw in motion, carrying and dispersing all kinds of life. Completely coming together as one single ginormous piece around 270 million years ago, it broke up again just 70 million years later. In the process, it brought countless biological communities together before casting them asunder again.

One international team, led by the University of Sydney and the Okinawa Institute of Science and Technology, has now found out that the gigantic landmass played a role in the evolution of everyone’s least favorite creepy-crawly too: the cockroach.

The first fossils that can be properly attributed to contemporary cockroaches can be found in the Cretaceous Period, around 140 million years ago. This record has suggested to researchers that their lineage of living cockroaches dates back around 200 million years ago, during the supercontinent’s disintegration, but the details here remained somewhat unclear.

This team’s new work, published in the journal Molecular Biology and Evolution, has significantly revised their scuttle-heavy history.

They looked at the complete mitochondrial genomes of 119 living cockroach species, as well as a handful of termites, mantises, and other related groups, and found that their last common ancestor lived 235 million years ago before Pangaea began to properly break apart.

Mitochondrial genomes aren’t the same as your nuclear DNA. They’re separate genetic coding instructions found within the powerhouses of cells, which are only passed down maternally. Left pretty much unaltered and unmutated, unlike their nuclear cousins, they are rather useful to geneticists that are trying to trace family trees back through time.

By looking for specific genetic markers and comparing and contrasting these with others, common ancestors can be found, as if triangulating on a map. That’s essentially how this enigmatic 235-million-year-old ancient ancestor – not the original cockroach, mind you, but a progenitor of them – was identified.

Cockroaches, as noted by the official press release, aren’t great fliers. They probably didn’t tend to fly across the ocean from landmass to landmass as their once whole supercontinent began to shatter. Today, their distribution is almost global, with only the highest latitudes experiencing a dearth of cockroachian crusaders.

The team notes that this revised timing means cockroach ancestors drifted on the fragments of Pangaea as they made their way across and around the world. By reconstructing the geographic ranges of these ancestral beasties, they found “tentative support” that there was indeed vicariance – geographical segregation – “within and between several major lineages”.

This means that the destructive action of plate tectonics tore families and some closely related families apart, and these little monsters just went with it, evolving into new species, extinct and extant, along the way.

In some cases, particularly across the Australian, Indo-Malayan, African and Madagascan regions, the team’s genomic work suggests that there was transoceanic dispersal too – meaning cockroaches snuck across in tiny, vegetation-based rafts, or perhaps were washed across small inlets by the tide.

Either way, they’re now everywhere, much to everyone’s chagrin. They’re generally considered to be pests, those that spread disease and leave funny smelling unguents behind. However, in certain parts of certain countries, cockroaches are considered to be a nutritious food source. Each to their own, we suppose.

Either way, it’s safe to say that they’re incredibly hardy. Not only is it likely that they could survive the aftermath of a nuclear war, but their lineage survived the destruction of a supercontinent. Fair play, you nasty little demons.

More From this publisher : HERE ; This post was curated using : TrendingTraffic

 


RELATED PRODUCTS
  • The World's Simplest and Most Effective Way To Eliminate Back Pain Naturally.
  • Oprah expert shares the very best strategy for getting any girl back
  • How to Get Over Your Breakup and Find Dating Success
  • End your break up, stop divorce or lovers rejection, repair the damage.
  • Killer strategies on how to survive a breakup and even win your ex back.
  • Learn How to Get Lasting Relief From Back Pain, Neck Pain and the Stress it Causes.
  • The only system based on scientific research that will help you get your ex boyfriend back
  • 6 'Magic' Words Could Be All it Takes to Get Your Ex-Boyfriend to Come Running Back Today
  • Discover the common cause of fatigue, low libido, low mood and weight gain
  • Clickbank Ads
     

    If you like our content help us with a share… or two …  

    Also -  I have some free stuff for you .......

    Nr 1. In This FREE Report you can Discover:

    Secrets to acquiring the freshest, hottest leads via YouTube In-Stream ads quickly and easily! Best secret tips for the most effective targeting for your ads! Totally legal, but little-known method for literally stealing traffic from your competitors! Get more traffic to your videos and landing pages without spending a fortune! And much more - all within this special FREE report!

     

    Nr 2. Did you know you can Absolutely EXPLODE YOUR EMAIL LIST FOR FREE with UNTOUCHED offline sources?

     

    Nr 3. The #1 secret to becoming an affiliate superstar - Earn your first $100 online – without a dime to invest.

    If you’re still looking to “make it online – I have just the thing for you. It’s a video series that shows how to make your first $100 online – even if you don’t have a dime to invest. Yes – nothing.  Free.  Nada. Is this possible? You bet. It’s the most powerful system used by those “in the know”. Good things don’t have to be difficult. And they don’t only come to those who wait. Have A Look

     

    Nr 4. Top 10 Email Marketing Mistakes. Which of these mistakes do you make?

     

    Nr 5.  You can learn about : The hottest social networking site that will send an unlimited stampede of traffic to your site - for FREE! How to quickly locate a swarm of hungry buyers using "information portals"! The fast and easy way to use simple images to siphon targeted traffic, on command! Learn how to get the most possible traffic from Instagram, and make sure that traffic converts! And much more ...

     

    Nr 6. It’s no secret… Facebook is an incredible place to get tons of free, viral traffic. But… most people are going about it all wrong.  How many of these mistakes are you making? Download the free report to find out.

       

    Nr 7.  Special free report .  It's called "Operation Midas Touch" and you can download it here...

    The report features a surefire method for generating at least $1000 per week online,without a website or product of your own!

    Nr 8.  Instagram is still one of the hottest ways to get a LOT of traffic fast. All by sharing images. Sounds easy enough, yeah? Well, yes and no. If you want to really start driving a lot of  traffic and making sales using Instagram then you should download this report.

    Nr 9.  When it comes to creating a product online there are so many ways to approach it. Wouldn’t it be great to just get the meat of it all so you can get started faster? Well, the good news is, today you can download a guide called the Product Creation Formula Quickstart Guide. It’s as the title suggests - a Quickstart guide. You’ll get a list of action steps to take right away. Download your copy today !

    Nr 10. Would you like to finally USE all of that dusty PLR you have sitting around on your harddrive? Or maybe find the resources for the best PLR available - at the best prices? What about how to use that PLR to make you money with just a few minutes of work. Well, you’re not going to want to miss this!

      Nr 11. Buzzfeed’s top post has more than 21 million views. Think about that for a sec… ONE of their articles has had over 21 million people who have read it! And they have thousands of articles... what would you do with that kind of traffic? A friend of mine hacked their method and was able to use it to get 11,592 targeted new subscribers in 2 weeks on their very first attempt!

    Nr 12. Push notifications are one of today's hottest trends in website traffic and conversions, and for good reason. Studies have shown that as many as 40% of people will opt-in for push notifications, which is about TEN TIMES the rate of people who opt-in for emails! That’s huge! Not only that, but they're also highly effective at pulling clicks, as well. Some studies have shown CTR at an average of around 40%, with highs of as much as 80%! Again, that’s huge!

    Nr 13. Would you like to know how to get more money from the exact same number of website visitors you’re currently getting? Even if you’re website is getting as few as 1-2 visitors a day, this report will show you how to increase your profits using these few handy hacks.

    Nr 14. People have now realised that it's not the size of the list which matters, it's the quality. ... and the only way to create a quality list is by launching your own products. Let it be $7 ebooks, $17 info products, $27 video training product or software's... all of these work. My good friend Kevin Fahey has is revealing how he's launched over 20 products in the past 4 years, many of them top sellers. Needless to say he's banked a handsome amount in this time.

    Nr 15. Do you ever feel that the man you like or even love, just doesn't see you or desire you in way you want him to? Or... maybe you're able to get a man's attention though not the right kind of attention? Or... maybe you're still single because you wait and wait for men to approach you first? What you may not know is that the way we flirt will either attract the "wrong" man for us or the "right" man.

    Nr 16. When it comes to getting sales and leads online, there is ONE thing that 95% of marketers use... it's called a LIST. My friend Jimmy just released a free book that explains WHY a list is important and how YOU can build your own list. It's available right here (and it won't cost you a penny)

    Nr 17. If you have tried everything, and still aren't able to get your Ex back, then you need to pay attention.

    Nr 18. What if I told you that you could make ANY woman WANT to do ANYTHING for you? Would you think I'm crazy? Well... what If I told you that you could also make her LOVE every minute of it and come back for more?

       

    Nr 19. I have a special free plugin for you today. It's called "Covert Hover Mini"

    This plugin will triple your blog traffic by compelling your visitors to share your images on social media. This is some really clever stuff and it works like a charm. After you grab your free plugin, don't  forget to read the free bonus report as it will show exactly how and why this strategy works like crazy.

    Nr 20. The days of being able to get away with a basic WP theme and a pic or two are gone, your site needs to look good. Even Google are looking for you to have engaging graphics on your site. But getting good quality graphics made for your site is a pain, AND it will cost you both time and money (if you outsource it). But I have a special free download for you today. A virtual treasure chest of over 21K profit pulling graphics you can start sing today to generate more traffic & sales!

    Nr 21. 20 professional full HD background videos. These background videos are perfect for giving your videos that extra kick they need to stand out from the crowd Oh yeah they are in full 1080p HD too, I hope you'll enjoy them.

    Nr 22. If you've ever failed to create a WordPress site of your own or typically waste hours & even weeks trying to figure it all out on your own....

    Nr 23. No doubt, you've seen all of the video launches lately! There is a reason for it... Video marketing is a GREAT way to make money, and with the recent creation tools making it super accessable for anyone to get started... It's no surprise that more people are making videos. However... there is a missing element to most video marketing products...

    Nr 24. For the first time ever... You can get the straight scoop on how someone is selling over $1,000,000/year of t-shirts on Facebook!

    Use them  .... and have fun !