What Is the Ethylene Molecule and How Is It Used?
Learn how one simple, highly reactive molecule regulates life cycles in nature and powers the global materials industry.
Can Twins Be From Different Fathers?
Understand the rare biological conditions and precise timing that allow fraternal twins to be conceived by two separate fathers.
Can Adults Grow New Teeth? The Science of Tooth Regeneration
Explore the biological limits of human teeth and the cutting-edge regenerative research aiming to replace prosthetics with natural, grown teeth.
When Do Pink Salmon Run in Washington?
Understand the unique biennial cycle, peak timing, and physical changes of Washington's Humpy salmon runs.
How Mexican Genetics Influence Health and Disease
The medical implications of Mexico's unique, admixed genetic profile, analyzing disease risk, regional variation, and personalized drug metabolism.
How Did Early Humans Communicate Before Language?
Uncover the biological and cognitive evolution of communication, tracing the path from non-vocal gestures to the emergence of symbolic proto-language.
How Often Do Pigeons Lay Eggs?
Discover the rapid reproductive cycle of pigeons, explaining how urban life and unique feeding methods enable continuous breeding.
What Are Bottom Feeders and How Do They Eat?
Discover how bottom feeders thrive in the benthic zone using specialized adaptations and why they are vital to ecosystem health.
How Does Energy Flow Through a Food Web?
Explore the one-way journey of energy through ecosystems. Discover the physical laws that dictate flow efficiency and limit biological complexity.
What Type of System Is Earth: Open or Closed?
Understand why Earth is classified as a dynamically stable system: closed for mass, yet constantly exchanging energy with space.