Staff Writer

Elena Castellanos Page 1,356

Elena Castellanos has been writing about science for kids and teens for more than a decade. Elena has covered everything from deep-sea creatures to rocket launches, and loves stories that start with a strange question. When not reporting, Elena can be found hiking, baking bread or trying to identify birds by their songs.

Heart Rate: What to Know Heart & Lungs
Where Octopuses Live and How They Adapt Aquatic
Thatch and Lawn Fertilizer: What’s the Connection?Lawn
Colon Cancer vs. Breast Cancer: Key Differences Cancer
What Experts Say About Kidney Function Gut & Kidney
When to See a Doctor About Heat Stroke Safety
Everyday Habits That Affect Urine Tests Tests
Freckles vs. Brittle Nails: Key Differences Skin & Hair
How Scientists Study Venom Zoology
What Experts Say About Seahorses Aquatic
Squirrels vs. Wolves: Key Differences Mammals
Ten Things to Know About Hedges Trees & Shrubs
Surprising Facts About Tulips Flowers
Annual Checkups vs. Telehealth: Key Differences Healthcare
What’s Really Going On With Dopamine?Brain & Nerves
Komodo Dragons vs. Turtles: Key Differences Reptiles
DNA Tests vs. Blood Types: Key Differences Genetics
Chemotherapy, Explained Cancer
The Hidden Side of Meteor Showers Earth & Space
What Experts Say About Anesthesia Procedures
Heart Murmurs vs. Cholesterol: Key Differences Heart & Lungs
Acid Rain vs. Wetlands: Key Differences Environment
Cows and Hamsters: What’s the Connection?Pets & Farm
Viruses vs. Enzymes: Key Differences Biology
Stitches: What to Know Procedures
How Long Ducks Live Birds
Metabolism: What to Know Biology
Melatonin Supplements at Every Age Supplements
The Science Behind MRI Scans Tests
Chickenpox: Facts vs. Fiction Kids