Octopuses could be a lot smarter if
A. penguins didn't live in igloos
B. they used Hemoglobin in their blood
C. they had opposable thumbs
D. they had schools like fish
E. all of the above
Answer: B
Octopuses could be a lot smarter if
A. penguins didn't live in igloos
B. they used Hemoglobin in their blood
C. they had opposable thumbs
D. they had schools like fish
E. all of the above
Answer: B