Here are the possible solutions for they may have coexisted with humans clue
Answer
Clue
Relevancy
bigapes
Clue
They may have coexisted with humans
gotalong
Clue
Coexisted
atria
Clue
Humans have right and left ones
Definition
ATRIUM, (Latin) a square hall lighted from above, into which rooms open at one or more levels
legs
Clue
Dogs have twice as many of them as humans
Definition
LEG, to walk briskly
molars
Clue
Adult humans have 12 of these
Definition
MOLAR, a grinding tooth
newt
Clue
Gingrich who said "females have biological problems staying in a ditch for thirty days because they get infections and they don't have upper body strength"
Definition
a tailed amphibian of the salamander family, also EWT
italy
Clue
"You may have the universe if I may have ___" (Verdi opera line)
ales
Clue
They may have big heads when they're drawn
Definition
ALE, a kind of beer, made without using hops as a flavouring, also YILL
