Latest articles by Marilyn Perkins
Echidnas: Facts about spiky Australian mammals that lay eggs
Discover interesting facts about echidnas, the strange platypus relative with spines, spurs and a pouch.
Are cats the only animals that purr?
Everyone knows what a happy cat sounds like. But are they the only animals that purr?
What are whole-body MRIs, and are they worth the hype?
Whole-body MRI scans have risen to prominence for their alleged ability to catch many health conditions early. But are they legit?
What animal has the best eyesight?
When it comes to exceptional eyesight, picking a clear winner is harder than you might think.
Crows: Facts about the clever birds that live all over the world
Discover interesting facts about how crows remember faces, mimic human speech and more.
How do migrating birds know where they're going?
To navigate the skies, birds rely on a complex sensory tool kit.
The sun: Facts about the bright star at the center of the solar system
Discover interesting facts about the sun, the solar system's central star that supports all life on Earth.
Can adults grow new brain cells?
Scientists are still debating whether the human brain is capable of growing new cells past childhood.
The history of cat domestication
Discover the history of our feline friends, and learn about the debate over whether cats are really "domesticated" at all.
Do parrots actually understand what they're saying?
Parrots are prolific vocal learners. But do they actually understand the words they say?
The moon: Facts about our planet's lunar companion
Discover interesting facts about how the moon formed, what it's made out of, and the many missions humans have launched to explore it.
Quantum computing: Facts about the ultra-powerful computers that use quantum mechanics
Discover interesting facts about quantum computers, how they differ from classical computers, and what sort of fields they'll be used in.
When was beer invented?
Humans discovered fermentation thousands of years ago, but ancient brews would have tasted much differently from the beers of today.
Jupiter: Facts about the biggest planet in our solar system
Discover interesting facts about Jupiter, its many moons, and whether the gas giant and its moons could host extraterrestrial life
Saturn: Facts about the ringed planet
Discover interesting facts about Saturn, its rings and whether it could contain extraterrestrial life.
What's the oldest known recipe?
Cooking is an essential part of human culture, but people haven't always written down recipes the way we do now.
Is getting an IUD painful?
People experience different amounts of pain during IUD insertion, but there are a number of pain-relief options available to patients getting the contraceptive.
Antarctica: Facts about the southernmost continent
Antarctica is the coldest, windiest, and driest continent. Because so little moisture falls as rain or snow, Antarctica is classified as a desert.
Climate change: Facts about our warming planet
Discover important facts about what climate change is, what's causing it, and what we can do to stop it.
What are mRNA vaccines, and how do they work?
mRNA vaccines train the immune system in a similar way to traditional vaccines, but they use a different strategy to get there.
Bears: Facts about the furry omnivores that live in many parts of the world
Discover interesting facts about the different types of bears and learn why not all bears hibernate.
How much of your brain do you need to survive?
Case reports of people with atypical brains reveal the human brain's staggering ability to adapt to damage.
