Here are the possible solutions for they have major bifurcations clue
Answer
Clue
Relevancy
aortae
Clue
They have major bifurcations
Definition
AORTA, (Greek) the main blood vessel from the heart
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
joetorre
Clue
First major league manager to have 2000 wins and have 2000 hits
edwardgrobinson
Clue
Actor who said "Some people have youth, some have beauty—I have menace"
ews
Clue
Sounds you might make when I say "Would you rather watch your parents have sex or have your parents watch you have sex?"