What are some mind-blowing facts about biology?

One interesting fact is how humans and the Earth share a unique water connection.

The human body is made up of about 60% water, which is surprisingly close to the Earth's surface, where around 71% is covered by water.

It’s almost like we mirror the planet we live on, reinforcing the idea that water is fundamental to both life and the environment in fascinating ways.

Another fact is that your DNA is not as human as you think. About 8% of human DNA comes from ancient viruses that infected our ancestors millions of years ago.

These viral fragments became part of our genetic code and are still passed down through generations. Some of this viral DNA even plays a role in vital processes like pregnancy!

So, in a way, we’re part virus, and that’s not something most people ever consider when thinking about what makes us human.

Another lesser-known fact is that some species of jellyfish can biologically reverse their aging process.

When stressed or injured, Turritopsis dohrnii jellyfish can revert their cells back to a younger state and basically start life over, making them potentially immortal.

Finally, human bones are far more dynamic than most people realize. They’re not just hard, static structures; your skeleton regenerates itself completely every 10 years or so.

Cells within the bone are constantly breaking down and building back up, meaning that your skeleton is, in a way, younger than you.