40 Clever Biology Puns to Make You Laugh Out Loud
Biology might be about cells, DNA, and the wonders of life — but who says it can’t be hilarious? From clever wordplay to nerdy humor, biology puns are a great way to bring some fun to science. Whether you’re a student cramming for exams, a teacher looking for a classroom icebreaker, or just someone who enjoys witty jokes, these puns are sure to get you grinning from ear to ear.

Funny Biology Puns You’ll Love
- I told a biology joke, but there was no reaction.
- You must be a neuron, because you’ve got some nerve.
- Never trust an atom — they make up everything!
- I’ve got my ion you.
- Two cells fell in love, but it was all just mitosis.
- Don’t trust bacteria — they might be a little shady.
- You’ve got to be DNA — because you’re well put together.
- My biology teacher has a great sense of humerus.
- Stop mitosing around and get to work!
- Without photosynthesis, we’d all be in the dark.
More Hilarious Science Wordplay
- What do biologists say when they’re in trouble? “Cell-fie defense!”
- My heart beats for you like a cardiac cycle.
- Why are biologists such good friends? They always have good chemistry.
- I’d tell you a genetics joke, but I don’t want to cross the line.
- Why did the plant break up with the light? It wasn’t feeling the spark.
- That mitochondria is the powerhouse of my love.
- You’re as sweet as glucose.
- Stop being so negative — be more positive like a proton.
- You must be an enzyme — you speed up my heart rate.
- Life without biology jokes would be un-bearable.
Even More Biology Puns to Brighten Your Day
- What’s a biologist’s favorite instrument? The organ.
- I’m over the moon-cell for you.
- I’ve got a ribosome in my heart for you.
- You’ve got me trapped like a molecule in a membrane.
- Without you, my life would be in a state of decay.
- Why did the leaf go to therapy? It was feeling green with envy.
- Don’t leaf me hanging!
- I think you’re tree-mendous.
- My love for you is in my genes.
- That cell is really membrane-ing business.

Last Batch of Laughs for Science Fans
- Why was the biology book sad? It had too many problems.
- Let’s stick together — like cells in a tissue.
- I’m totally RNA-over-heels for you.
- Without you, I’d be de-natured.
- We must have good biology — we’ve got great chemistry.
- You’re my better half of the chromosome.
- Don’t be jelly — be nucleus!
- Biology is just cell-f preservation.
- You make my heart go boom like a lysosome.
- Keep calm and carry on… in the cytoplasm.