the only difference between their brains is the size because most humans have bigger skulls than dogs so that allows them to have a bigger brain and the bigger the brain the more your brain absorbs the information.
Yes, they are.
NoNo, a dolphin is not bigger than a t-rex.See the Related Questions referenced below.
Male dolphins are slightly bigger than females
A dolphins brain and therefore its cerebral cortex is about the same size as a humans, however some dolphin species have a more deeply folded cerebral cortex than in humans but the cortex itself is not as thick. The level of folding found in the dolphins brain is so similar to that of humans as to suggest that they have a level of intelligence comparable to our own. So to answer the question what is the size of a dolphins cerebral cortex, the data seams to suggest it is about the same as our own.
No.
yes
Yes
no
Bigger than a dolphin, smaller than a whale.
About but not quite. guinea pigs brains are bigger than poop.
no the male is a bit bigger than the female pin dolphin. no the male is a bit bigger than the female pin dolphin.