the largest carnivorous land steeped who has ever lived on Earth are spinosaurus aegypticus. it weighed 10 tons and was 15-18 meters long. larger than both the t-rex and giganotosaurus.
the bear dog it's 6ft to shoulder and 1,800 to 2,210 lbs and can kill all cats and bears
The world's largest dog breed is the Irish Wolfhound.
Largest is the English Mastiff, tallest is Irish Wolfhound.
diamon-shepper
There is no current World's Largest Dog listed in the Guinness Book of Records. However, back in 1989 Zorba, an English Mastiff, tipped the scales at 343lbs and made it into the Guinness Book of Records. The English Mastiff is the largest breed of dog and the Irish Wolfhound the longest. In 2001, Joe Flynn's English Mastiff, Hercules, made the record book for heaviest dog at 282lbs. Gibson is the current longest dog at 8 feet and 3 inches.
BORDER COLLIE!
t.rex
Basilosaurus
Titanoboa
Megaladon
The largest prehistoric animal ever was the Basilosaurus which was a 59 foot whale. The largest crocodilian was the 39 foot long Sarcosuchus Imperator.
The largest prehistoric mammal ever was the Indricotherium a prehistoric rhino like mammal the height of a modern giraffe and weighing 12 tons.
MegalodonOtodusPtychodusIsurus hastalisEdestus
sinead of course
bear dog
There are no prehistoric whales...whales evolved from these dog-like things that swam a lot... that's why when you look at whale skeletons they look a little like dog skeletons
It is the Leedsichthys. It is over 90 ft.
The largest dog in the world is the great dane