They usually have opportunistic remoras attached to their undersides, looking for scraps that result from the feeding of the mantas, and for protection.
(opportunistic remoras; attached; ) (scraps; result; from the feeding of the mantas, and for protection) (They; have; opportunistic remoras attached to their undersides; T:usually) Context(They have,List([0, 17))):(They; have opportunistic remoras attached to their undersides looking; for scraps)
They have,List([0, 17))
opportunistic remoras scraps They They
attached result have have opportunistic remoras attached to their undersides looking
from the feeding of the mantas, and for protection
opportunistic remoras attached to their undersides T:usually
for scraps