The heaviest lobe-finned fish is the West Indian ocean coelacanth at 176 pounds. The heaviest ray-finned bony fish is the ocean sunfish at 5,100 pounds. The heaviest cartilaginous fish is the whale shark at 9 tonnes.
The heaviest rock in the world is probably the Baobab granite in Australia, which weighs about 1,500 tonnes. This massive rock formation is still attached to the ground and has not been moved from its original location.
The heaviest rock in the world is thought to be a type of metamorphic rock called peridotite. Peridotite is found in the Earth's mantle and can be denser than other types of rocks due to its high iron and magnesium content.
The heaviest element in the periodic table (known in March 2013) is ununoctium.
The heaviest alkaline-earth metal is radium. Radium is a highly radioactive element and is the heaviest and most unstable of the alkaline-earth metals.
Uranium is the heaviest naturally occurring actinide.
the ocean sushine fish is the worlds heaviest bony fish
the heaviest is the black hills gold
The Ocean, or Common Sunfish, Mola mola, is the heaviest known bony fish in the world - and has a backbone.
I think the heaviest kid in the world is Jessica
The second heaviest bird in the world is the Southern Cassowary.
650 lb
Humpback Whales are not the heaviest whales in the world but there one of the heaviest whales in the world they would get a 3rd place on weight
The African elephant is the world's heaviest land mammal
Black marlin, over 1300 pounds.
SW - This can't be true! What about all the other whales? The second heaviest animal in the world is an African elephant, The heaviest being a Blue whale at 190tonns
The world largest and heaviest animal is the Blue whale weighing in at 418,878 lbs (190,000 kg)
The blue whale. The heaviest blue whale measured at about 418,878 pounds.