Nothing, saber-toothed cats (or incorrectly a saber-toothed tigers) are extinct.
2
Dinosaurs cryolophosauruses small Mastodons and sometimes smilodons
To warn other animals he's boss.
•Mouse-eating monsters •Smilodons •Seagulls •polar bears •Orcas •Foxes
The saber toothed tiger or the smilodons were mammals and so they gave birth to the babies........
•Mouse-eating monsters •Smilodons •Seagulls •polar bears •Orcas •Foxes
megatheriam the giant ground sloth was sometimes an enemy and the terror birds were enemys too
Most useful and more useful.
more useful, the most useful
The comparative form of "useful" is "more useful."
more useful, most useful
Computers are so useful to us.Bert is not a very useful person.I find that the phone is a useful invention.Make yourself useful and pass me the spanner.Hopefully these sentences are useful to you.