What is the only known vertebrate family to have clear blood as the result of complete lack of hemoglobin?
Correct answer: Crocodile Icefish
Bijou
Cool. I learned something new!
Player #66817220
They lack hemoglobin "as adults". So does that mean juveniles have hemoglobin? Do adults even have red cells (so to speak) which are what carry the hemoglobin in other species? So many questions this raises!
Gunnar Gunderson
Show us one, please!
ThatOneGuy
the random things I learn about!!
Alana
do they bite?
boogs
ice ice baby.
boogs
blood would freeze.
Dickens
I didn’t know that, but guessed. Very interesting and informative question.
Mellow Mind
Gunnar Gunderson, it’s the fish in the accompanying picture. Each guarding a nest of eggs.
daisy
Bijou, Hi bijou
Jānis R.
Bijou, me too
Guillermo Jr.
these creatures are well qualified to be mobsters
Varun Singh
nvb h
Aashritha
I never heard or saw them . I just clicked it and it came correct
Manishka
This one was tough for me
Violet
Green Machine, me too