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Riffle through the pages
Evolution is happening before our very eyes—just ask the peppered moths
May 1

May 1 Evolution is happening before our very eyes—just ask the peppered moths

Stephen Riffle
Genetics

Nowadays, the idea of evolution through natural selection is widely known—but what does it actually mean, and is it still happening today?

What can corgis teach us about Neanderthals?
May 1

May 1 What can corgis teach us about Neanderthals?

Stephen Riffle
Ancestry Testing, Genetics

Just this month, scientists announced the sequencing of an ancient human hybrid whose DNA was half Neanderthal and half Denisovan. Find out what it means for our understanding of our own species.

Understanding genetics: What are “penetrance” and “expressivity”?
May 1

May 1 Understanding genetics: What are “penetrance” and “expressivity”?

Stephen Riffle
Genetics

When reading about genetics, you may wonder why some people’s eyes are brown while others’ are blue. The genetics behind your physical appearance and the nuances of disease-risk can be confusing. But if you understand some of the terminology, you can use your DNA to learn about potential disease risks, personal athleticism, dietary intolerances, and more.

Our Neanderthal DNA: Who were Neanderthals and Denisovans?
May 1

May 1 Our Neanderthal DNA: Who were Neanderthals and Denisovans?

Stephen Riffle
Ancestry Testing, Genetics

Neanderthals and Denisovans are our ancient relatives. Archeological data indicates that archaic humans evolved into Neanderthals and Denisovans in the Eurasian continent over hundreds of thousands of years before the anatomically modern man—our most immediate ancestors—left Africa.

Does a platypus dream at night?
May 1

May 1 Does a platypus dream at night?

Stephen Riffle
Genetics

Platypuses can tell us many things about mammalian evolution. They may even be able to teach us about the evolution of our dreams. Learn about the process of dreaming and what this curious animal tells us about sleep.

Can humans evolve to make space travel safer?
May 1

May 1 Can humans evolve to make space travel safer?

Stephen Riffle
Genetics

Near the cement-sealed Chernobyl nuclear power plant, site of the worst nuclear accident in history, you might expect a wasteland—a stretch of Ukrainian countryside completely uninhabitable by organisms of any kind. But you'd be wrong.

You could have different ancestry than your biological siblings. How?
May 1

May 1 You could have different ancestry than your biological siblings. How?

Stephen Riffle
Ancestry Testing

It would be easy to assume that one person’s genetic ancestry results can tell a family’s whole story. But that’s not exactly true.

3 amazing things you didn’t know about ancient humans
May 1

May 1 3 amazing things you didn’t know about ancient humans

Stephen Riffle
Genetics, Ancestry Testing

While tidbits about snakes and owls are interesting, it’s those revealing insights into our own species that can be the most surprising. So with that in mind, here’s three fun facts about humans that you can use to inspire others to take an interest in human history, and look cool doing it.

So, you’ve discovered where your ancestors lived. What’s next?
May 1

May 1 So, you’ve discovered where your ancestors lived. What’s next?

Stephen Riffle
Ancestry Testing

In many cases, people seek out ancestry testing to learn about family history. But that’s not all that’s hidden away in your DNA—important moments in the history of our species have left lasting marks on our DNA, some of which may still be affecting us today. Here's how to explore this aspect of your history.

The genetic bonds we share with a tiny, annoying bug
May 1

May 1 The genetic bonds we share with a tiny, annoying bug

Stephen Riffle
Ancestry Testing, Genetics

Where did fruit flies come from? Turns out the answer to this question can tell us a whole lot more than just the history of the fly.

Bioinspired hybrid polymer scaffold regenerates and repairs mouse kidney
Apr 25

Apr 25 Bioinspired hybrid polymer scaffold regenerates and repairs mouse kidney

Stephen Riffle
Materials Science

PLGA combined with decellularized extracellular matrix and Mg(OH)2 overcomes inflammatory response in tissue regeneration.

Spider dragline silk acts as a rotational actuator
Mar 22

Mar 22 Spider dragline silk acts as a rotational actuator

Stephen Riffle
Materials Science, Wildlife

Torsional force, driven by humidity, results from proline amino acid residue on the silk dragline.

Barbs of a feather support flight together
Feb 22

Feb 22 Barbs of a feather support flight together

Stephen Riffle
Materials Science, Wildlife

Feathers hold a wealth of architectural secrets that could inspire the design of feathered planes and mitigate disaster during earthquakes.

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