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At this phase, it eats up young plants before maturity for later harvest. Wiki User. Getting even smaller, insects have higher brain:body-mass ratios than any vertebrate we know of: more like 1 in 6. The relationship between brain-to-body mass ratio and complexity of behaviour is not perfect as other factors also influence intelligence, like the evolution of the recent cerebral cortex and different degrees of brain folding,[6] which increase the surface of the cortex, which is positively correlated in humans to intelligence. Reptiles tend to have larger brains than amphibians of the same body size. When faced with new situations, they are able to adapt based on past experiences rather than create new memories. For example, the insects response is 1/20th of a second. However, once the moth is all grown up, its adult form doesnt live long. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Which bird has a brain smaller than either of its eyeballs? - The Big Zoo How many calories can the brain burn by thinking? A 2009 study in the journal Brain, Behavior and Evolution (opens in new tab) found that an especially tiny genus of ant has the largest brain for its body size. Microcephaly is notorious for its recent link to the Zika virus, but it can also be caused by mutations in various genes. But which animal has the biggest brain relative to its body size? The brains communication depends on how the dog was born. They are unparalleled in tool use among animals as advanced as primates, using multiple tools together such as leaves, strings, and sticks, as well as unnatural objects designed for studies. This is only one-third of the number of humans. Earthworms are also known for storing food in their bodies. But, brain size isn't a perfect predictor of animal intelligence. Brainbody mass ratio, also known as the brainbody weight ratio, is the ratio of brain mass to body mass, which is hypothesized to be a rough estimate of the intelligence of an animal, although fairly inaccurate in many cases. The cuttlefish can only achieve such feats due to its multiple brains. Microcephaly is a condition where a baby's head is much smaller than expected. brain size comparison | Biology for Kids | Mocomi Kids, https://mocomi.com/embed/content.php?c=95507|Animal brain size comparison|https://mocomi.com/animal-brain-size/.