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Biology Facts

Why Are Yawns Contagious?

Lots of animals yawn. It's a primitive reflex. Humans even begin to yawn before birth, starting about 11 weeks after conception. But contagious yawning doesn't start until about age 1 or 2. And even ... Continue reading

Luck Of The Irish?

In the 1800s many Irish were poor tenant farmers who farmed mainly for the landowner and relied on small plots for their own food. Because high yields of potatoes could be obtained from these small ... Continue reading

A potato leaf with late blight. Note the white sporangia of the fungus that are water or air borne to new plants and the potato tubers in the soil.

Synchronicity

There's something called synchronicity that we've probably all experienced at one time or another. Some people prefer the term 'meaningful coincidence.' You're thinking about your friend from high ... Continue reading

The Science of Tears

When was the last time you had a good cry? Shedding tears may be healthier than you thought, and the secret lies in the chemical composition of tears. ... Continue reading

Eye Tear Glands

More Biology Facts


Animals:

  1. Batesian Mimicry
  2. California Condor
  3. Cougars, A Jumping Star
  4. Does Your Beagle Have A Belly Button?
  5. Endangered Species - The Hawksbill Turtle
  6. Eukaryotic Organisms
  7. How Do Cats See in the Dark?
  8. How Does The Turtle Get Its Shell?
  9. Is It Sexism or Racism?
  10. Marmaduke and the Taco Bell Chihuahua Are Cousins
  11. Nature's Exceptions to Our Rules
  12. Regeneration 101
  13. The Handsome Betta Fish
  14. The Red-Cockaded Woodpecker
  15. What Elements Are Required By Animals And Plants For Survival?
  16. Where Do Frogs Go In The Winter?
  17. Wise As An Owl

Fish:

  1. Diadromous Fish
  2. Heady Success
  3. Lionfish Invasion
  4. The Razor-sharp Surgeonfish
  5. When A Bass Isn't A Bass

Fungi:

  1. A Humongous Fungus Among Us
  2. Are Mushrooms Plants?
  3. Ergot, Witches & Rye. Oh My!
  4. The Gingerbread Man
  5. Who Moved My Moldy Cheese?

Genetics:

  1. Cloning and Ethics
  2. Embryo Transfer and Cloning
  3. Genetic Testing And Discrimination
  4. Genome Mapping: A Guide To The Genetic Highway We Call The Human Genome
  5. Microarrays: Chipping Away At The Mysteries Of Science And Medicine
  6. The Dogma of Life
  7. Why Aren't Mice More Like Us?

Germs, Viruses, Microbes:

  1. Bacteria Sometimes Catch A Virus
  2. Bird Flu, Swine Flu, Human Flu
  3. Flu Pandemics in the 20th Century
  4. Food Irradiation: A Safe Measure
  5. How Do Bacteria Reproduce?
  6. How Does Salmonella Get Inside Chicken Eggs?
  7. Life In The Extreme
  8. Microorganisms: Are they really that bad?
  9. West Nile Virus Spreads Through United States
  10. What's In Your Water?
  11. You Can Learn A Lot From A Microbe.

Habitat:

  1. An Invasion of Infiltrators
  2. Wetlands Top Ecosystem
  3. Why Are Zebra Mussels Successful As Invaders?

Human Anatomy:

  1. Did You Smell Something?
  2. Electricity and the Brain
  3. Fahrenheit 100 and Rising
  4. Fahrenheit 98.6
  5. Hey Nose-Brain!
  6. Now You See It, Now You Don't
  7. Splitting Hairs
  8. The Human Pancreas
  9. Vibrational Energy
  10. Vitreous Humor, Sclera and Other Yukky Eye Stuff
  11. We Live In Two Distinct Visual Worlds
  12. What Causes Wrinkles?
  13. What Gives Hair Its Color?
  14. What We Learned From The Songbirds
  15. What's Blindsight?

Human Biology:

  1. A Sweaty Subject
  2. Can You Drink Too Much Water?
  3. How Biological Clocks Work
  4. How Blood Clots
  5. Is Your Immune System Educated?
  6. Leading Killer Wears Two Faces
  7. Neurons
  8. Obesity: How much fat can your genes handle?
  9. Pass the Iodized Salt Please
  10. Potassium Iodide To The Rescue
  11. Proteins Function Through Their Conformation
  12. Proteins In General
  13. Respect Your Nose
  14. The Science of Tears
  15. Water, Water Everywhere, But Not A Drop To Drink
  16. What Are Blood Types, and Why Are They Important?
  17. What Are Stem Cells?
  18. Your Senses Make Sense of Energy

Human Mind:

  1. A Tickle is All in the Timing
  2. Billions and Billions
  3. Brain Waves
  4. Butterflies In Your Brain
  5. Coffee: Beverage Of Sedition
  6. Do Blind People Dream?
  7. Left Nostril Right Brain
  8. Monkey See Monkey Do: Mirror Neurons May Lie At The Root Of Language
  9. Neurogenesis
  10. New Ideas About An Old Puzzle
  11. Our Brains: A Wasted Resource?
  12. Phrenology
  13. Synchronicity
  14. The Blood-brain Barrier
  15. The Developing Brain
  16. The Limbic System
  17. The Self-less Gene?
  18. The Strange Case Of Phineas Gage
  19. The Touching Brain
  20. There's A Lot More To Vision Than Meets The Eye
  21. Welcome to1984
  22. What's So Funny?
  23. Where is God in the Brain?
  24. Which Came First? The Words or the Melody?
  25. Why Are Yawns Contagious?
  26. Why Tree Twig Twine Twists Tongues
  27. Word Power of the Very Young

Insects:

  1. Are Bees Physicists?
  2. If You're Bringing Cows, Bring Your Own Decomposers
  3. Send In the Lady
  4. The Ants Go Marching One by One, Hurrah!
  5. The Art of Hunting
  6. The Journey of the Monarchs
  7. Throw Out Your Thermometer
  8. What Makes Those Jumping Beans Jump?

Invertebrates:

  1. Nematodes Are Everywhere
  2. Prokaryotic Organisms
  3. Sex and the Sea Slug
  4. What Is A Coccolithophore?
  5. What Is Coral Bleaching?

Mammals:

  1. Beluga Whales
  2. Gestation Periods of Mammals
  3. Gray Wolf - Canis lupus
  4. Grizzly Bear, (Ursus arctos horribilis)
  5. How Did Dogs Evolve?
  6. I Am The Walrus
  7. Steller Sea Lion Biology
  8. Sweet Dolphin Dreams
  9. Vampires
  10. West Indian Manatee, (Trichechus manatus)
  11. When Did A Cat Become A Kitty?
  12. Will That Be One Hump or Two?

Natural History:

  1. The Great Permian Extinction

Plants:

  1. Beware -- Red Tide!
  2. Bioenergy Basics
  3. Botrytis: The Noble Rot
  4. Giant Cloned Monster Loose In Mediterranean Sea
  5. GM: Not For General Motors Anymore
  6. How Do Cacti Survive in That Environment?
  7. How Do They Grow Those Colossal Pumpkins?
  8. Is Catnip a Drug for Cats?
  9. It All Started With The Colwart
  10. Luck Of The Irish?
  11. Man-Eating Plants
  12. Palm Trees and Prickly Pears
  13. St. John's Wort
  14. Tea Time!
  15. The Rapid Movement of the Soybean Rust Pathogen
  16. The World's Largest Clone
  17. Tobacco Mosaic Virus
  18. What are Bacillariophyta?
  19. What is Garlic Mustard?
  20. What's The Difference Between A Sweet Potato And A Yam?
  21. What’s So Different About Ferns?
  22. Why Do Leaves Change Color In The Fall?
  23. Why is Red-Green Colorblindness a 'Guy Thing?'
  24. Yes! We Have New Bananas

Reproduction:

  1. The Egg-citing Egg

Reptiles:

  1. A Creature Only A Mother Could Love?
  2. Let Go, Gecko!
  3. See You Later Crocodile, In A While Alligator
  4. Why Can't We Really Clone Dinosaurs?

Spiders:

  1. Spiders and Their Venom