Jesslyn Shields is a freelance science writer working out of Athens, Georgia. She writes about brand new research for HowStuffWorks. Since 2010, Jesslyn's written science news and content for educational videos, because she loves to always have something new to yammer on about at parties. You can find her online at www.jesslynshields.com

Recent Contributions

From the chemicals that pollute and the massive use of water, the traditional method of dyeing blue jeans is an environmental disaster. Nanoparticles made from wood pulp might be the answer to the problem.

By Jesslyn Shields

Emma Gatewood became the first solo female thru-hiker of the 2,193-mile Appalachian Trail in 1955 at the age of 67.

By Jesslyn Shields

The main function of the Krebs cycle is to produce energy, stored and transported as ATP or GTP, to keep the human body up and running.

By Jesslyn Shields

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Washing soda is more basic (as opposed to alkaline) and is stronger than baking soda, so it can be used for everything from tough stains to clogged drains.

By Jesslyn Shields

Some TV shows are lucky to stick around for just one season, but these did that and then some. In fact, they're the longest-running dramas and comedies in television history.

By Jesslyn Shields

Scientists have come up with a new formula to describe the shape of every egg in the world, which will have applications in fields from art and technology to architecture and agriculture.

By Jesslyn Shields

Flamingos use a secretion from a gland near their rear end to touch up their feathers when they've been bleached by the sun.

By Jesslyn Shields

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A Punnett square helps predict the possible ways an organism will express certain genetic traits, such as purple flowers or blue eyes.

By Jesslyn Shields

The axolotl can regenerate virtually any of its limbs or organs and has a face that's totally irresistible.

By Jesslyn Shields

How do we consider a Thing with no edge? Ecosystem ecologists are always trying.

By Jesslyn Shields

Zinc plays several crucial roles in the male body. It helps fight off cold symptoms, fixes skin problems and even boosts sexual function.

By Marie Willsey, Brion O'Connor & Jesslyn Shields

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Research shows no two brains are put together quite the same way. And we can find out the patterns in under two minutes.

By Jesslyn Shields

The biggest land-dwelling arthropod can crack into everything from coconuts to carcasses, but they're also really vulnerable.

By Jesslyn Shields

These arachnids are aggressive, unbelievably fast and love to murder ants for no reason, but don't worry — they're harmless.

By Jesslyn Shields

Thorium is in many ways safer than uranium for nuclear power production. But is it safe enough to bet on for our energy future?

By Jesslyn Shields

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The boxing kangaroo as a symbol of the Australian fighting spirit dates back to the 1890s, but what's the truth? Do kangaroos actually box?

By Jesslyn Shields

Is the "banana spider" you're looking at the one that sits around harmlessly catching flies, or could its bite kill a small child? If we rely solely on common names, this question is complicated.

By Jesslyn Shields

You have to be at least 35 years old to be President of the United States. So, has anyone come close to that?

By Jesslyn Shields

Our ancestors survived long winters because of fermented foods, but what health benefits do they have for modern humans?

By Jesslyn Shields

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They love your lawn and, in 2021, they're everywhere. Here's what to do about armyworms and how to spot the little critters.

By Jesslyn Shields

Real numbers are the opposite of imaginary numbers and include every number you can think of.

By Jesslyn Shields

Even if you've never seen a saguaro in person, when you think "cactus," you're probably thinking "saguaro."

By Jesslyn Shields

Is there a magic equation to the universe? Probably not. But thanks to one man's obsession with rabbits, we have a sequence of numbers that reflect various patterns found in nature.

By Robert Lamb & Jesslyn Shields

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The U.S. population became much more diverse, gave birth to way fewer kids and watched its white population get older during the decade of the 2010s, among other key takeaways.

By Jesslyn Shields

A perfect square is a number, but it can also be explained using an actual square.

By Jesslyn Shields