gular sac उदाहरण वाक्य

Both sexes have a patch of skin at the throat that is the gular sac; in male great frigatebirds this skin is red and can be inflated to attract a mate.
It has a huge bill, a pink gular sac at its throat ( " crumenifer ( us ) " means " carrier of a pouch for money at the neck " ), a neck ruff, and black legs and wings.
The second is the large gular sac ( found in both males and females of the species ), which is a throat pouch that can be inflated to the size of the siamang's head, allowing it to make loud, resonating calls or songs.
Like all cormorants, this includes stretching the gular sac with the hyoid bone and repeated " yawning "; as in many but not all cormorants, the pelagic cormorant's display furthermore includes arching the neck and hopping, lifting the folded wings and rapidly fluttering them to show the white thigh patches.
Body compressed; dorsal scales very large, about three times as large as the median ventrals, smooth, pointing backwards and upwards; ventrals strongly keeled; 36 to 43 scales round the middle of the body; gular sac : small; scales on either side of the lower jaw feebly keeled, larger than the ventrals, those on the gular pouch smaller, more strongly keeled about as large as the ventrals.

The skull has been described as duck like, being broad, flat and very elongate, closely resembling what is seen in " Stomatosuchus ", an unrelated crocodilian that may also have had a large gular sac similar to those of pelicans or baleen whales . " Mourasuchus " had rows of small, conical teeth numbering around 40 on each side of the upper and lower jaws . " Mourasuchus " presumably obtained its food by filter feeding; the jaws were too gracile for the animal to have captured larger prey.