Here are the possible solutions for they have arches clue
Answer
Clue
Relevancy
feet
Clue
They have arches
They have prominent arches
Definition
FOOT, the terminal part of the leg on which the body stands and moves
soles
Clue
They're attached to arches
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
