ELI5 stands for 'Explain Like I'm 5'. It's an internet concept where complex topics are explained in the simplest possible terms, as if you were explaining to a five-year-old child.

How do I simplify a legal document into plain English?

Paste your legal text - contracts, terms of service, rental agreements, NDAs - into eli5.cc and select your complexity level. The AI will translate the legalese into clear, jargon-free language you can actually understand.

Can I use ELI5 to understand my medical report?

Yes. Paste lab results, discharge summaries, or medical terminology into eli5.cc and get a plain-English explanation of what your results mean. Choose ELI5 for the simplest explanation or Expert for a more clinical summary.

Yes. eli5.cc offers 5 free explanations per day with no signup required. Pro (coming soon) will offer unlimited explanations, shareable links, and history.

What's the difference between ELI5 and ChatGPT?

eli5.cc is purpose-built for simplification. Instead of crafting prompts, you paste text, pick a complexity level (ELI5 to Expert), and get a structured explanation instantly. Every explanation gets a shareable link, and explanations are indexed for search - unlike ChatGPT conversations.

ELI5: evolution

high confidence

March 26, 2026

// explanation

// eli5Evolution is like how your family changes over many, many years. Your great-great-grandparents looked a bit different from you, and their great-great-grandparents looked different from them. Living things slowly change and adapt to their surroundings over lots and lots of generations. If animals with certain helpful features (like faster legs or warmer fur) survive better and have more babies, those helpful features become more common in the group. That's evolution—nature's way of slowly improving living things to fit their world better [1].

// sources

[1]Evolution - Wikipedia

Evolution is the change in the heritable characteristics of biological populations over successive generations. It occurs when evolutionary processes such ...

[2]Evolution (2001) - IMDb

Two college professors team up with a fire-fighting cadet and a government scientist to combat an alien organism that has been rapidly evolving.

[3]Understanding Evolution – Your one-stop source for information on ...

Feb 27, 2026 ... Your one-stop source for information on evolution.

[4]Evolution Power Tools

Evolution specialize in multi-material cutting technology and steel fabricating saws, blades, drills and cutters. Engineered to deliver power, accuracy and ...

[5]Evolution - Leading Provider of Online Casino Tech

Evolution is a leading B2B solution provider for casino operators offering live casino, live game shows, slots and more.

[6]Casually Explained: Evolutionvideo

Video by Casually Explained

[7]How Evolution Works (And How We Figured It Out)video

Video by PBS Eons

[8]Evolution in ONE SHOT | All Concept & PYQ | Basic to Advanced | Class 12 NEETvideo

Video by PW NEET

explain something else →