Their slender, fast-moving jaws and long teeth are especially adapted for catching fish.
(Their slender, fast-moving jaws and long teeth; are; especially adapted for catching fish) (Their slender, fast-moving jaws and long teeth; especially adapted; for catching fish)
Their slender, fast-moving jaws and long teeth Their slender, fast-moving jaws and long teeth
are especially adapted
especially adapted for catching fish
for catching fish