vocal sac in a sentence

Examples

1. Typically, males are smaller than females, and can be told apart from the females by their yellow vocal sacs when calling.
2. Due to the males lack of vocal sacs, they have soft mating calls that can only be heard from short distances.
3. The vocal sac is open to the mouth cavity of the frog, with two slits on either side of the tongue.
4. Like the stoney creek frog ( " Litoria wilcoxi " ), and many other stream-dwelling frogs, waterfall frogs lack vocal sacs.
5. When the tadpoles are about to hatch, they are engulfed by the male, which carries them around inside his much-enlarged vocal sac.
6. Searching in the foliage, he whispers " Right here ! " and illuminates a frog as its vocal sac expands and constricts.
7. The species exhibits sexual dimorphism with males having single sub-gular vocal sac and a tubercle on the humerus while females lack them.
8. Although lacking a vocal sac, the males make a mating call of alternating long and short trills, by contracting the intrinsic laryngeal muscles.
9. A male can be distinguished from a female during breeding season due to the visibility of a dark-pigmented vocal sac on his throat.
10. Its head was more similar to a howler monkey's, which has a lower jaw that juts forward to accommodate an apple-size vocal sac.