No, we just kind of guessed they were there.
p.s. It would be the fossil remains, not fossils in remain.
sabertoothed tigers.
The real scientific name for sabertoothed tigers of all ages was smilodon.
The terms are fossils.
yes
Sabertoothed tiger
a fossil is a preserved remain or trace of an organism that lived in the past
Residual structures and fossils.
Fossils.
petrified remain fossils
Cats did not evolve from sabertoothed tigers. Rather, sabertoothed cats evolved from other cats. Modern apes evolved from miocene apes, which were somewhat similar. Miocene apes evolved from some lemur-like primate, or perhaps something like a lorise. http://en.wikipedia.org/wiki/Loris
the answer is petrified fossils
All are indicative of the size and shape and possible habitat of the original organism.