Alien blood saves human lives
It's blue, found on Earth, and it's a medical miracle
There is a bright
What color is the blood of a horseshoe crab due to its copper content?
- It's blue, found on Earth, and it's a medical miracle
- Pharmaceutical companies harvest this blue blood to test drugs and vaccines for contamination.
- Despite their name, horseshoe crabs aren't crabs at all.
Human blood is red because of iron, but horseshoe crab blood is baby blue because it is built on copper. This ancient liquid is more than just a weird color; it is one of the most valuable substances in medicine.
Instead of white blood cells, these crabs use specialized cells called amebocytes. When these cells encounter even a trace of bacteria, they instantly turn into a thick gel. This 'clot' traps the invaders before they can infect the crab.
Pharmaceutical companies harvest this blue blood to test drugs and vaccines for contamination. If you have ever had an injection, your life was likely protected by a horseshoe crab. If the medicine touches a tiny drop of the crab's blood and it clots, the batch is discarded.
While synthetic alternatives like Recombinant Factor C now exist, the medical industry has historically relied on the crab's biological system for decades. Every year, half a million crabs are captured, bled, and then released back into the wild.
Despite their name, horseshoe crabs aren't crabs at all. They are more closely related to spiders and scorpions than they are to lobsters.
How did this hit you?
Or say it in words - one line is enough.
Two questions from this article.
Both right earns +50 XP. No account needed.
Sources (2) - tap to view
The Ultimate Trivia Pack
100 questions worth asking out loud. Free, printable, and ready on your phone.
Discussion (0)
Add your name and join in. No account needed.
Loading…