How DNA Links You to Every Living Creature on Earth

The Universal Code: Every living thing—from humans to hummingbirds—uses DNA written in the same four chemical letters: A, T, C, and G.
Shared Blueprint: About 60% of your genes are similar to a fruit fly’s, and more than 98% match a chimpanzee’s—proof of shared ancestry.
Ancient Molecule, Endless Story: DNA has been copying itself for billions of years, connecting all species through time.
Genes as Family Threads: Mutations passed down through generations trace the hidden branches of life’s family tree.
Molecular Time Travel: Comparing DNA lets scientists measure how long ago species split and evolved apart.
The Language of Life: The same genetic code builds coral reefs, oak trees, whales, and humans—just arranged in different sentences.
Invisible Connections: Even bacteria share distant DNA links with you—your own body hosts microbial relatives inside and out.
Evolution’s Signature: DNA preserves evidence of the adaptations that helped life survive ice ages, volcanoes, and cosmic impacts.
Every Genome a History Book: Each strand of DNA carries a record of evolution’s experiments, triumphs, and mistakes.
One Living Family: From microbes to mammals, DNA proves we’re all part of one unbroken lineage stretching across Earth’s history.