Wailing grey seal pup
Wailing is one way the pup contacts its mother, which is done by all pups. However, wailing can get more vigorous and frequent if the pup is abandoned. Abandonment can occur for several reasons such as death or sickness of the mother animal or separation due to human disturbance. The pup in the video is already in a good nutritional state, but not weaned yet and still dependent on its mother, who just went into the water and left its pup at the beach. Now, the pup is complaining.
Minor argument
This female grey seal does not care much for the advances of the male and states this vigorously. The other animals prefer to keep a distance to all this riot and move into the water.
