no they don't. there brain is as big as ours:)
Some examples of big animals with relatively small brains are elephants, blue whales, and sperm whales. These animals have massive bodies, but their brain size in proportion to their body size is smaller compared to other animals.
I would like to know how big their brains are. They are incredibley sweet but have small heads.
Albert Einstein's brain was about average in size compared to other adult human brains. However, the specific regions of his brain associated with mathematical and spatial reasoning were found to be slightly different in shape and structure compared to average brains.
The size of a peanut or walnut EDIT: NO! This is a common misconception. Tyrannosaurus rex brain was about the size of a gorillas brain.
It depends on the animal, Elephants have small brains compared to their body mass, whereas a dolphin has a rather large one...
Earthworms have a very simple nervous system and their brain is not as structured or centralized as in other organisms. Their brain is made up of a series of ganglia, small clusters of nerve cells, which are located throughout their body. Overall, the earthworm's brain is very small in size.
big turtles from small?Some turtle just have different body sructures, they just come out the way the mother was, but big turtles can live way longer than small turtles can. actually, even small turtles can live 50+ years. Even one that only grows 4-5 incheshappy herp keeping :)
Big brain of course because brains send down quick messages to the nerves in the body and then you walk upright
If you eat a big pickle it will make your brain big if you eat a small one it will make your brain small.
Evolution tends to provide animals with all the brain they need. Those which eat plants tend to have small brains because not that much brainpower is needed to capture a plant. Predators tend to have proportionately larger brains because hunting animals is more complex activity. Stegosaurus had a brain about the size of a walnut, while Tyrannosaurus' brian was actually bigger than a human's (though much of it was devoted to analyzing odors, not composing poems or working math problems).
Brains are not cookies.