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.
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 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.
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.
Albertonykus borealis
The bee hummingbird (Mellisuga helenae) is "the smallest dinosaur that ever lived". Of course your question only applies to non-avian dinosaurs. For over a century the smallest known dinosaur was the 3 foot Compsognathus, otfen compared to chickens in size. The discoveries in China for the last 20 years have revealed many smaller dinosaurs. Currently the smallest known dinosaur is Epidexipteyx, at only 1 foot long. The smallest dinosaur that ever lived on earth was "westlothiana," it is almost the same size as a fully grown human's toe!
Yes. In fact, paleontologists have actually looked inside the brain cavity of Troodon. They found that it had the biggest brain relative to body size of any dinosaur. Because of this, Troodon is believed to have been the smartest dinosaur.