kraftiekortie wrote:
Humans are closely related to sea squirts. We are both chordates.
The whole sea-squirt thing is fascinating to me.
"So, what invertebrate is most closely to related to vertebrates?"
"See this little blind tadpole-y thing?"
"Yeah! It's got bands of muscles on it that look like a fish fillet. That makes sense."
"Well, when this tadpole grows up, it sticks to the seafloor, digests its own brain and turns into an immobile bag of jelly."
"That makes... less sense."
"Often they stick together in big clumps of identical individuals all glued together. Sometimes these clumps can go whizzing through the water like a small gelatinous jet engine."
"Wait, what?"
"Oh, don't worry, it's not all wierd! Some of the tadpole things don't bother growing up. Instead, they hang around in a house made of their own snot that's just
shaped like a sea squirt."
_________________
You're so vain
I bet you think this sig is about you