Scorpion, spider
That is impossible, many insects have not been discovered. In general, insects all have 6 legs.
According to Animal Planet, ladybugs have six legs.
they have six legs. no other animal does.
Insects only have six legs and are not mammals.
Insect
Insects are considered part of the animal kingdom, and an insect, by definition has six legs. They are, in fact, the largest single family of the animal kingdom.
A grasshopper
I suppose there could be other answers to this, but the clue "six jointed legs" instantly says insect to me. Members of the Class Insecta (Phylum Arthropoda) are defined principally by having six jointed appendages (legs).
insects such as flies and beetles have six legs.
spider?
Coyote , iguana weasel , cougar
A bug with six legs has six legs.