The largest animal in the sea is actually the blue whale.
(a marine MAMMAL) at 98 feet in length. The Blue whale (Balaenoptera musculus) is the largest animal species this Earth has ever known to have existed.
there could be others at the bottom of the oceans or elusive of humans or probes.
Fully grown, these great creatures reach a length of over 30 metres and weigh as much as twenty-four large elephants, or more than 1,500 men. The heart of a blue whale is more than a metre in diameter.
A whale shark
blue
blue whales
NO. I belive the blue whale is the biggest or the megaladon.
the biggest lake is Caspian sea.
probably spinosaurs although not technically dinosaurs the sea living retiles of the late cretacous were truly gigantic
Puff the Magic Dragon
Not only are Blue Whales the biggest sea animal, they are also the largest animal that has ever lived. They can even be bigger than dinosaurs.
A Whale and I do believe they are also the biggest mammal on earth too.
it is a whale shark a whale shark has spots on its back and can only eat plankton . it has 1,000 teeth and is not a whale it is a shark but it looks like a whale so it is called a whale shark.
a sea turtle; 285
single unicellular creature