i think you're talking about barnacles
Whales have bristles, not teeth. So no their teeth do not grow back.
Gray whales and hump back whales migrate to have birth.
they never had whales in their back garden. not sure on what gave you the idea.
Whales are vanishing due to Cpt Kirk and his crew traveling back in time to bring them to a future where there are no whales.
no they bite
Whales dive to get food. They come back to the surface to breathe.
maybe
Yes.
because I ate them
Whales migrate in a loop over time. They migrate back a forward between several places.
Killer, Hump Back Killer, Hump Back
I don't believe there are hump back whales in captivity. There are many killer whales, but i don't think the aquarium owners could keep a whale that large.None.