Suppose your ancestors had lived in darkness for almost a million years. This is the world of the Mexican blind cavefish.
Our presence could be causing the brains of non-human animals to grow.
Despite your best chemical defenses, cockroaches are evolving to bug you even more.
Scientists believe human brain development is the result of genetic mutations that occurred millions of years ago.
Unlike their contemporaries the dinosaurs, crocodiles managed to survive whatever killed off their Jurassic cousins. So what accounts for their longevity?
New fossils unearthed in China cast light on the evolution of today's fliers.
The protein myoglobin provides new clues to the evolution of diving in mammals.
The box jelly has evolved a central nervous system unlike any other animal on Earth.
Have you ever wondered why the sound of scraping a chalkboard seems so terrible to the human ear?
We're related... to something that looks like an eel!