Bats hear high frequency sounds emitted by their prey enabling them to distinguish contracting a muscle in the ear, these bats can block out their own sounds while still detecting prey.
(Bats; hear; high frequency sounds emitted by their prey) Context(Bats hear,List([0, 9))):(high frequency; sounds emitted; by their prey) (these bats; can block out; their own sounds; T:while still detecting prey) (them; to distinguish; contracting a muscle in the ear) Context(them to distinguish,List([63, 82))):(them; to distinguish contracting; a muscle)
Bats hear,List([0, 9)) them to distinguish,List([63, 82))
Bats high frequency these bats them them
hear sounds emitted can block out to distinguish to distinguish contracting
high frequency sounds emitted by their prey
by their prey
their own sounds T:while still detecting prey
contracting a muscle in the ear
a muscle