context: Manta ray (Manta birostris) is one of the largest stingray species in the world. The width of the body from the tip of the pectoral fin to the other end of the fin reaches nearly 7 meters (probably more because there are reports that there are mantas whose body width reaches 9.1 meters). The manta's heaviest weight ever measured was 3 tons. [1]
question: What is the biggest weight of a manta ray?
answers.text: 3 tons