Can you tell me why insect blood is clear?
Can you tell me why insect blood is clear?
user
Well, that’s a good question!  There are two main reasons.  One is that insects are tiny and blood is mainly water.  The other is that insects are often covered with tiny hairs, called setae.  Setae act as little mirrors and reflect light away from the body, to make the insects hard to spot.
assistant
Wow that is so interesting
user
Yes, the microscopist René Malaise discovered it in 1913.
assistant
Thanks for the answer
user