No stingrays do not have a swim bladder. If they sink to the bottom they have trouble getting back up.
in the ocean
swim
PEOPLE!
they swim.
cold
As far as a blue whale can swim in a year
10000km
Between 10,000 and 25,000 blue whales are believed to still swim the world's oceans.
Within moments of its birth.
Blue Whales can swim at speeds up to 20 mph!
Because it can get really light so it helps the blue whale swim up for air
Whales swim using their fins and tails.