The throat grooves (ventral pleats) expand when feeding, allowing a large volume of water and prey (e.g. krill, small schooling fish) to enter the buccal cavity (mouth). The grooves are contracted and the water forced out, trapping the prey in the hairy fringe of the baleen. The prey is then swallowed.
The pleats expand when the whale sucks in water and krill.
A whale group with dorsal fin and a series of grooves along the throat and chest is: rorqual
As far as i know.... yes they do
BALAENOPTERIDAE (Fin-backed Whale Family)
helps the whale expand amounts of water in their mouth and they contract in and push out water
shut u[
whales throat
throat grooves
The Rouquals.
a wales throat pleats is a small comlpanate in its throat and it can make aloitsught of noise.it ataches to its metothoric lensium wich can cause damage to its thrat wich conects to its tholycantopien.
rorquql
No. But they are often covered by barnacles on their chin and ventral pleats (throat grooves).