Assertion: hummingbird's brain | /r/HasProperty | 4.2% of its body weight
Facets:
Source sentences:
text: A hummingbird’s brain is 4.2% of its body weight, the largest proportion in the bird kingdom.
text: Although the hummingbird is the smallest in size, its brain is 4.2% of its body weight, making it the largest proportion among all birds.
text: A hummingbird’s brain is 4.2% of its body weight, the largest proportion in the bird kingdom.