Assertion: blue whale's heart | /r/CapableOf | weigh 400 pounds
Facets:
Source sentences:
text: The heart of an average sized blue whale weighs 400 pounds (180 kg) and is the largest known in any animal.
text: Blue Whales are so large that their hearts are about 5 feet long and weigh 400 pounds and their tongues weigh as much as an elephant.
text: Its heart weighs 400 pounds (180 kg) and is 6 feet (1.8 m) wide, with a thoracic aorta estimated to be 9 inches (23 cm) in diameter.