A tadpole, if present, somehow senses the adult's approach and rapidly vibrates the tip of its tail, sending pressure waves through the water which the adult frog can feel.
(A tadpole; somehow senses; the adult's approach) (A tadpole; rapidly vibrates; the tip of its tail, sending pressure waves through the water) (the tip of its tail; sending; pressure waves; through the water) (the water; can feel; the adult frog)
A tadpole A tadpole the tip of its tail the water
somehow senses rapidly vibrates sending can feel
the adult's approach
the tip of its tail, sending pressure waves through the water
pressure waves through the water
the adult frog