Middle Schools serving Lake in the Hills include: 1  Westfield Community School in Algonquin, IL serves students residing in District 300 boundaries. 2  Richard F. Bernotas Middle School and Leon J. Lundahl Middle School in Crystal Lake, IL serves students residing in District 47 boundaries.
Answer by Only trying to help. Confidence votes 14.8K. The manta ray is the largest of the rays, with the largest known specimen having been about 7.6 m (about 25 ft) across, with a weight of about 2,300 kg (about 5,000 lb).
When newborn, mantas weigh about 10 kg, but can reach up to 1200 - 1400 kg when adults. The largest individuals span over 6m between the tips of the pectoral fins. There is no sexual dimorphism, but females tend to be a little larger than males. The entire skeleton is cartilage, just like in sharks. Skin is rough.