Attention Deficit Disorder Prosthetic Memory Program

Animals by Number of Neurons

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Animals by Number of Neurons - © Attention Deficit Disorder Prosthetic Memory Program

Neurons are the cells that transmit information in an animal’s nervous system so that it can sense stimuli from its environment and behave accordingly. Not all animals have neurons, Trichoplax and sponges lack nerve cells altogether. Neurons may be packed to form structures such as the brain of vertebrates or the neural ganglions of insects. The number of neurons and their relative abundance in different parts of the brain is a determinant of neural function and, consequently, of behavior. The following list shows the number of neurons in the structure that has been found to be representative of animal intelligence.

African elephant = 2.57×10^10
Human = 8.6×10^10
Gorilla = 3.34×10^10
Chimpanzee = 2.8×10^10
Giraffe = 1.075×10^10
Brown bear = 9.586×10^9
Lion = 4.667×10^9
Raven = 2.171×10^9
Fox = 2.11 × 10^9
Capybara = 1.6×10^9
Octopus = 500,000,000
Pigeon = 310,000,000
Brown rat = 200,000,000
Nile crocodile = 80,500,000
Frog = 16,000,000
Honey bee = 960,000
Ant = 250,000
Box jellyfish = 8,700–17,500
Tardigrade = about 200
Sponge = 0

Me At The Zoo - © Attention Deficit Disorder Prosthetic Memory Program
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Me At The Zoo
Selenicereus grandiflorus - © Attention Deficit Disorder Prosthetic Memory Program
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Selenicereus grandiflorus
Morteza Hannaneh - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP290
Morteza Hannaneh
Tales of Mystery and Imagination - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP056
Tales of Mystery and Imagination
Surface Tension - © Attention Deficit Disorder Prosthetic Memory Program
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Surface Tension
Sex.com - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP212
Sex.com
Camouflaged Cell Phone Towers - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP387
Camouflaged Cell Phone Towers
Beaux-Arts Ball - © Attention Deficit Disorder Prosthetic Memory Program
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Beaux-Arts Ball
Ijen - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP345
Ijen
Tooth Universal Numbering System - © Attention Deficit Disorder Prosthetic Memory Program
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Tooth Universal Numbering System
Namio Harukawa - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP243
Namio Harukawa
Uncanny Valley - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP392
Uncanny Valley

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