Calculating odds sounds straightforward — until you realize that without knowing the full set of possibilities, how likely each is, and whether the process can be repeated, your numbers may be guesses dressed up as certainty.
A simple and clear, step-by-step FAQ on DNA — from double helix structure to mutations and epigenetics — showing how genes shape health, traits, and evolution.
The Ensatina salamanders of California form a living ring species, where asymmetric mate choice and pheromones reveal reinforcement and speciation in real time.
Endogenous retroviruses are ancient viral stowaways in our DNA. Humans and chimps share ERVs in the same genetic locations—an impossibility by chance. These viral fossils are stunning evidence of common ancestry and evolution's undeniable fingerprints.
Humans and chimps share 98.8% of their DNA—so why do some sources claim it's only 95%? This playful breakdown explains what’s being measured, why both numbers are “right,” and why scientists aren’t actually arguing.
