Stegasaurus got by with the littlest brain mass per body weight. Was surprising it could feed itself.
Stegosaurus was nine metres long, and its brain was about the size of a walnut. This makes it the dinosaur with the smallest brain for its body size. Stegosaurus is dummest.
Meaning of Name: "delicate jaw" Period: Jurassic Period (205 million to 138 million years ago) Size: about 60 centimeters Weight: 5.5kg Location: France and Germany
The smallest dinosaur is Microraptor, probably less than 1 ft tall, and is 2 ft long.
Most palaeontologists believe compsognathus was the smallest dinosaur, but recent discoveries of an a dinosaur, micropachycephalosaurus that may be the smallest dinosaur ever and has the longest name ever given to a dinosaur!The smallest dinosaur is said to be the compsognathus.Its just 2 feet long and weighs only up to 6.5 pounds. There are a few more small dinosaurs which have the same heeight of the compsognathus.They are the saltopus and the echinodon.
the smallest dinosaur was about the size of a chicken
Saltasaurus, one of the smallest dinosaurs was about the size of a chicken.
dinosaur, mice, people who don't know the answer to this question
The animal with the smallest brain relative to its body size is the Etruscan shrew. Despite its tiny size, its brain makes up about 10% of its body mass.
The animal which is said to have the smallest brain is the green lizard. The green lizard's brain is said to weigh about 0.08 grams and is about five inches long and is commonly found in rocks, lawns and bushes.
KOALA has the smallest brain to skull ratio. Only about 60 % is gray matter, rest is fluid.
Albertonykus borealis
The smallest brain to body ratios of dinosaurs were those of sauropods. Despite being the largest animals ever to walk on land, their brains were only the size of a tennis ball. However, that was sufficient, and sauropods were widespread until the extinction of all dinosaurs, so their tiny brains don't seem to have been much of a deficit.