Complex Life Could Be Vastly Older Than Thought


New algae fossil discovery may reset the evolutionary time line

Source: Complex Life Could Be Vastly Older Than Thought

If found to be true, complex life could be as much as 500 million years older than previously thought. When life began on Earth is still somewhat of a mystery so any fossil that sheds light on the origin and evolution of life is a significant find!

Neanderthal genes are being removed from the modern human genome by weak but widespread natural selection

Neanderthal genes are being removed from the modern human genome by weak but widespread natural selection https://www.ucdavis.edu/news/fate-neanderthal-genes via DuckDuckGo for Android

15 Answers to Creationist Nonsense

The linked article by John Rennie in Scientific American was originally published in 2002 but it hasn’t lost any of its actuality nor has it been refuted by creationists. Creationist arguments also haven’t changed significantly since then, demonstrating how they are simply unable to formulate an opposing theory to evolution.  I’ve also written some answers to creationists nonsense earlier on this blog and have also explored if creationism is plausible.

Continue reading 15 Answers to Creationist Nonsense

Building blocks of life’s first self-replicator recreated in lab | New Scientist

New Scientist has an article announcing that a team of the Ludwig Maximilian University in Munich has found a plausible way to generate the two purine nucleosides, adenosine and guanosine – A and G in the genetic code. This is a big step to explaining how RNA may have formed spontaneously on the primordial Earth.

RNA molecules are thought to be some of the earliest self-replicators that led to life. Now their building blocks have been made to self-assemble in a lab

Source: Building blocks of life’s first self-replicator recreated in lab | New Scientist

Help needed to identify this animal

Two days ago, I found this little guy curled up on the wall of our hallway with no clue it got there. My guess is he/she hitched a ride on one of us and fell off as we took off our coats. I’ve been trying to identify it with the help of several resources on the Internet but so far I’ve been unsuccessful. I know that it isn’t a caterpillar based on the number of (false) legs. It’s probably the larva of a sawfly but I’m not sure.

I’d like to keep it to show my children what kind of insect will emerge from its cocoon but in order to do that, I need to know what it eats or other needs it might have. I’m hoping that someone on the Internet will be able to help me identify this little creature.

Sorry for the rather poor quality of the photos, I do not own a macro lens.

Help needed to identify this animal!

Fall

I like the fall, when the leaves turn from green to beautiful yellows, reds and light browns. Warm afternoons but chilly mornings. Gathering acorns and chestnuts. And course, fall is also the time of spiders. Morning dew makes their webs clearly visible.

During a walk yesterday, I snapped this beautiful spider which I believe to be a female European garden spider or cross spider, araneus diadematus. She was hanging in the afternoon sun light, head down as they usually do. Her legs are almost translucent in this shot and you can clearly make out the cross on her abdomen. You can click the image to see it a in a bigger size.

Araneus diadematus
Araneus diadematus

Did natural selection make the Dutch the tallest people on the planet?

An interesting article that should serve as a reminder that natural selection is still very much at work on our species, arguments from creationists notwithstanding.

New study shows that taller men in the Netherlands tend to have more children

Source: Did natural selection make the Dutch the tallest people on the planet?