Classroom Tested!

Picture it: A giant (like, seriously giant) tray full of bacteria. Billions and billions of bacteria just growing and spreading. A germaphobe’s worst nightmare? Nah. These bacteria (like most bacteria) are not only harmless, they’re providing new insights into how evolution works.

Beta Test Me!

Looking at a wolf and a German shepherd, it is easy to think: “Sure, related.” But what about a wolf and a Pekinese? Have you ever seen those dogs? They look like adorable walking footstools! How’d it go from howling at the moon to begging for treats? The answer just might be in the genes. So put on your gene-detective hats and let’s go.

Classroom Tested!

Fins, wings, and…fractions? Find out how simple measurements revealed a striking convergence among animals as varied as whales, birds, and sea butterflies. (Wondering what a sea butterfly is? We were, too. Lucky for you, the answer is in the Bite.)

Classroom Tested!

What do a bat, a pig, a mouse, and an opossum have in common? In this lesson plan students will explore both the structural and genetic homology of tetrapods!

Classroom Tested!

Researchers have been tracking E.coli through 60,000 generations to answer a fundamental question: How does natural selection work in a constant, stable environment?

Classroom Tested!

What do aching knees, a sore back, diabetes, and poor eyesight have in common, besides being, well, common? You’ll find out in this lesson, but here’s a hint: it has something to do with evolution.

Classroom Tested!

Think that evolution always results in disadvantageous traits becoming less common in a population? Think again.

Beta Test Me!

What do we do about the microscopic particle of all-things-bad coronavirus? Well, to quote Matt Damon in The Martian: We’re going to have to science the *bleep* out of this. And it’s never been more important to remember how science works.

Beta Test Me!

Using DNA analysis, researchers were able to effectively trace the evolution of HIV backwards in time to find the common ancestor of HIV samples circulating among humans today. Why is that important? Because the lessons they learned about how the virus changes and spreads may help us to stay one step ahead of HIV in the future.

Classroom Tested!

Tanning mice. Yep. You read that right. Mice with tans are at the center of this story of how researchers are looking into drugs that can trick our cells into tanning without the sun.

Classroom Tested!

Modern computer modeling unveils something surprising about a classic example of evolutionary convergence and divergence: the Anolis lizards of the Caribbean.

Here There!

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